The Financial Sector: A Comprehensive Introduction

Finance is part of our everyday lives. We earn income, buy and sell things, contribute to insurance and pension schemes, and maybe invest in stocks and funds. We also observe flows through our bank accounts in the form of incomes and transfers, utility bills, mortages payments and so on. These observable layers form a part of a much larger and a much more complex financial system. The parts of the financial system that we do not directly interact with, or the unobserved layers, are massive, and indirectly, have a significant impact on our daily lives. They affect prices, interest rates, credit availability, investment levels. All of these in turn determine macro indicators such as financial stability and economic growth.

We have discussed the System of National Accounts or the SNA extensively in several previous blog posts. From these articles, we know that the SNA is used for tracking all economic activity. The SNA also splits the economy into five core institutional sectors: households, non-financial institutions, financial institutions, the government, and the rest of the world. In this post, we will dive deeper into the financial institutions and to help give us a broad understanding of how this, almost elusive, sector works.

Since this post is extremely long, it is split into the following sections:

• The Financial Sector in the SNA
• A broad overview of the financial sector
• Sections 1.21 to 1.29 explore each financial sector category in depth
• Special cases of finanicial institutions
• Non-Bank Financial Intermediation (NBFI) (shadow banking)
• Crypto-Assets and Crypto-Based Finance
• Closing remarks

Let’s get started:

The financial sector in the SNA

The SNA splits the financial sector (sector S.12 in the SNA) into nine core “purpose” categories (S.121 to S.129). The figure below summarizes these and their major sub-classifications:

Own representation of the SNA financial sector. MacroCritical on Medium.

Have a careful look at the figure above see how many you can identify. If you are not deeply embedded in the world of finance, then probably not a lot. Each category and subcategory contains financial firms that we probably know by name, but cannot really compartmenalize them into specific categories. There are, most likely, two reasons for this; (a) we are simply not taught this information, and (b), not all financial firms fit into one “purpose” box. Large financial institutions often operate as umbrella or holding structures, overseeing multiple legally distinct subsidiaries that each fall into one of the financial categories described above for regulatory and statistical purposes. For example, well-known names such as the HSBC Group, Citigroup, Unicredit Group, and many others simultaneously control deposit-taking banks, investment funds, insurance companies, and a range of financial auxiliaries within a single corporate umbrella. Each subsidiary is classified separately in the SNA according to its economic function and is subject to its own sector-specific regulatory framework.

Each financial purpose category, and its subcategories, entails distinct types of financial risks which are the primary focus of financial regulations. Regulatory intensity typically reflects a combination of institutional size, interconnectedness, and risk profile, as these factors determine how far financial shocks can be transmitted to the real economy. The study of these transmission mechanisms has evolved into specialized research and policy fields, often discussed under terms such as systemic risk, balance-sheet risk, liquidity risk, and stranded assets. While these topics lie beyond the scope of this post, please keep them in mind since they also help explain why different financial activities are monitored and regulated differently and why classifying financial institutions by specific functions is essential for understanding their macroeconomic impact.

Another important point to consider is that not all financial purpose categories are well defined. Some categories, such as Other Financial Intermediaries (S.125), Financial Auxiliaries (S.126), and Captive financial institutions and money lenders (S.127) group together a wide range of activities and institutions that share only limited common features. These amorphous and evolving categories at the frontier of financial innovation and are often subject to fragmented, activity-specific regulation rather than a single, clearly defined supervisory framework.

In addition, not all financial flows go through banks or similar intermediaries, commonly known as bank-based financial intermediation. A significant share of financing takes place through non-bank financial intermediation (NBFI), often referred to as shadow banking, which operates alongside the traditional banking system. We will return to the role of NBFI later in this post.

A broad overview of the financial sector

Each of the nine purpose groups represent a key function within the broader financial architecture, that we summarize as follows:

1. Central Banks (S.121) issue currency, conduct monetary policy, manage official reserves, and act as lenders of last resort to deposit-taking institutions and systemically important financial institutions.
2. Deposit-taking Corporations (S.122): are financial intermediaries that operate through deposit and loans. This is the category where the interaction with the real economy is the strongest and form the core of everyday finance.
3. Money Market Funds (MMFs) (S.123): provide short-term, low-risk investments for firms, ensure liquidity in the financial system, and are close to deposit-taking corporations (S.122) in struture.
4. Non-MMFs (S.124): pool savings to invest in long-term assets such as bonds, equities, and property. Non-MMFs are impacted by market fluctuations and have balance sheet risks arising from price changes and revaluations.
5. Other financial intermediaries (S.125): Provide credit provision and financial intermediation outside traditional banking (S.122), for example, through leasing firms and development lenders.
6. Financial Auxilaries (S.126): facilitate financial transactions, payments, trading, clearing, settlements, etc. without taking any risks themselves. These institutions exist to ensure the smooth operations of the financial system.
7. Captive financial institutions and money lenders (S.127): conduct intra-group financing, asset holdings, treasury operations, cross-border financing, and risk management. This is a highly narrow category, often playing an organizational or residual role in the financial system.
8. Insurance corporations (S.128): specialize in risk pooling to ensure long-term financial stability. Insurance corporations are themselves institutional investors.
9. Pension funds (S.129): accumulate and manage retirement savings. These firms are all about inter- and intra-generational risk sharing. Pension funds are themselves institutional investors.

Three additional points to keep in mind about the above categories:

First, Central Banks (S.121) are a unique case in the financial system. While all other financial institutions are subject to prudential regulation, market conduct rules, or supervisory oversight, central banks are established directly by law and operate as public authorities rather than market participants. They are typically granted a degree of operational independence, particularly with respect to monetary policy, and are held accountable through statutory mandates, reporting obligations, transparency requirements, and oversight by legislative or public bodies. Their balance sheets and financial activities are instruments of public policy rather than the outcome of profit-seeking decision-making. As a result, central banks are constrained primarily by legal and institutional mandates, not by the prudential rules that govern other financial corporations. Their main purpose is to stabilize the financial side of the economy through monetary and fiscal policies without much interference in the system. Side note: what all needs to be considered for financial stability is still being debated, for example, to what extent should central banks should consider climate change in their policies.

Second, SNA classifications shown above are driven by primary pupose, and not ownership and control. But who owns and controls what does play a strong role. Almost each financial insitution can be placed in a two-by-two box of private vs public against domestic vs foreign ownership. Let’s briefly discuss these:

• Private versus Public: Not all financial institutions are privately owned. A significant number are publicly owned or controlled and operate with explicit public policy mandates. In the national accounts, these public financial institutions are classified alongside their functional peers (deposit-taking corporations, investment funds, insurers, or other intermediaries). This could be public banks, public investment funds, public holding comparies etc. What distinguishes public financial institutions from private ones is that, even though they operate in the market and use standard financial instruments, their activities are explicitly designed to support policy objectives such as economic development, financial inclusion, counter-cyclical stabilization, infrastructure finance, or strategic investment, rather than profit maximization alone. This makes the public finance discourse more complex than most people, or at least students of macroeconomics, realize. In brief, governments don’t just collect tax revenues and spend it on public goods as we typically learn in Econ 101, but also impact markets themselves through public banks and financial activities.
• Domestic vs Foreign: It is very common for countries to have international or multinational organizations operating within their boundaries. These could be clothing and retail chains, consumer good chains, financial institutions, global agriculture and mining firms etc. These multinational enterprises, or MNEs, represent an important cross-cutting case that are identified as either domestic-controlled or foreign-controlled entities. They play a major role in cross-border financial flows, foreign direct investment (FDI), profit allocation, all of which impacts trade, primary incomes, and the balance of payments (See this article on BoP). We will discuss MNEs in detail later.

Third, as mentioned earlier, many financial institutions cannot be assigned to a single functional category. Large financial groups, development institutions, and multinational enterprises often perform multiple financial functions through legally distinct but economically connected entities. For example, a single group may include a deposit-taking bank (S.122), a non-deposit-taking lender or guarantee provider (S.125), an investment fund manager (S.124), and captive treasury or holding entities (S.127). From an SNA perspective, each unit is classified separately according to its principal activity, even though they may be part of the same corporate or public group. This functional separation is essential for correctly measuring intermediation, risk transfer, and balance-sheet exposures. This is highly common in large financial instutitions which operate with different arms for different financial operations and regulations. It does get blurry on how internal financial resources are moved around making it hard to regulate very large conglomerates.

Now that we have the overview in place, the next nine sections discuss each of the nice financial purpose categories and their subcategories in slightly more detail. A couple of caveats to keep in mind before we proceed. Each category is large and complex enough to merit its own article, or even several ones. In order to the keep this post contained, the descriptions below are kept to broad objectives but are nuanced enough to (hopefully) allow the readers to distinguish the different types of financial institutions. Where necessary, additional information, such as interactions with other institutional sectors, common financial instruments used by the sector, risks involved and how they are regulated, and examples of actual financial institutions that belong to each category, is provided.

So let’s dive right in:

S.121: Central Banks

Central banks are financial institutions with a unique public mandate which differentiates them from all the other financial corporations. Their defining role is to issue currency, conduct monetary policy, manage official reserves, and safeguard financial and monetary stability. Unlike other deposit-taking institutions, central banks do not operate on a commercial basis and do not primarily intermediate savings into investment. Instead, they provide the monetary and institutional framework within which the rest of the financial system operates. Their balance sheets are policy instruments rather than outcomes of market-based financial intermediation, and their actions are intended to influence macroeconomic conditions rather than respond to them.

From a functional perspective, central banks generally have the following core purposes:

• First, they conduct monetary policy by steering interest rates or liquidity conditions in pursuit of objectives such as price stability.
• Second, they act as the issuer of currency and provider of central bank money, which serves as the ultimate settlement asset in the economy.
• Third, they support financial stability by acting as the lender-of-last-resort to deposit-taking corporations and by overseeing systemically important payment and settlement systems.
• Fourth, they manage official foreign exchange reserves and represent the economy in international monetary and financial arrangements.

The central bank balance sheet also reflects these roles. On the liability side, it issues currency and deposits that constitute the monetary base. On the asset side, it holds loans to banks, debt securities (often government bonds), foreign exchange reserves, and other assets acquired for policy purposes. Changes in these positions, particularly during periods of crisis or unconventional monetary policy, are recorded in the SNA as financial transactions and balance sheet adjustments to preserve the analytical distinction between monetary and fiscal policy.

Although households and non-financial corporations rarely interact directly with central banks, the indirect impact on the real economy is substantial. By influencing interest rates, credit conditions, asset prices, and exchange rates, central banks shape consumption, investment, inflation, and employment outcomes. In this sense, central banks are central to the transmission of macroeconomic policy, even though they do not themselves provide credit to the real economy.

Examples of S.121 institutions include the Federal Reserve in the USA, the European Central Bank (ECB) in the EU, the Bank of England in the UK, and so on. This Wikipaedia article provides a comprehensive list of all the central banks in the world.

S.122: Deposit-Taking Corporations

Deposit-taking corporations (S.122) are financial institutions whose defining feature is that they accept deposits, or close substitutes for deposits, from the public and use these funds to provide credit on their own account. In the SNA, this functional criterion distinguishes them from other financial intermediaries and places them at the core of bank-based financial systems. Through the combination of deposit-taking, lending, and payment services, S.122 institutions perform maturity transformation, create credit, and supply liquidity to the economy.

Deposit-taking corporations are the part of the financial sector with which households and firms interact most directly. They play a central role in financing consumption, housing, business investment, and trade, and they are the primary channel through which monetary policy is transmitted to the real economy. While S.122 institutions share these core functions, the sector encompasses a range of business models that differ in scope, client focus, and specialization.

Commercial Banks

Commercial banks are general-purpose deposit-taking institutions that provide a broad range of financial services across households, firms, and governments. They accept deposits from the public, extend loans for consumption and investment, operate payment systems, and engage in maturity and risk transformation on their own balance sheets. This implies that core economic role is to channel short- and medium-term savings into productive uses while ensuring continuous liquidity for depositors.

Commercial banks typically serve households through mortgages and consumer credit, non-financial corporations through working-capital and investment loans, and governments through payment services and holdings of public debt. Because of their size, complexity, and interconnectedness, commercial banks are systemically important in most economies and are subject to the most intensive prudential regulation, including capital and liquidity requirements, leverage limits, stress testing, deposit insurance, and macroprudential oversight.

This Wikipaedia article lists the largest commercial banks in the world. In terms of assets and market capitalization, top of the list are the “big four” public banks in China (ICBC, CCB, ABC, Bank of China), and other well-known names such as JPMorgan Chase, Bank of America, HSBC, and BNP Paribas.

Savings Banks

Although virtually all commercial banks offer savings accounts that pay interest broadly in line with prevailing market rates, savings banks are a distinct category of deposit-taking institutions with a specific historical and institutional role. Many savings banks were originally established as not-for-profit or public interest institutions, with the explicit aim of promoting financial inclusion, encouraging household saving, and supporting local economic development. This legacy continues to shape their business models today especially continental Europe.

Savings banks typically prioritize conservative lending practices, focus on long-term customer relationships, and strong links to regional economies. Their core activities include mobilizing household deposits, providing mortgages and consumer credit, and offering basic payment services. In contrast to large commercial banks, savings banks tend to focus on retail banking and local SMEs, and their balance sheets are generally less complex, with limited exposure to investment banking, trading, or international activities.

From a regulatory perspective, savings banks are classified as deposit-taking corporations (S.122) and are subject to the same core banking framework as other banks, including prudential supervision, capital and liquidity requirements, and deposit guarantee schemes. However, supervisory regimes often apply proportional regulation to savings banks, reflecting their simpler business models, lower risk profiles, and limited systemic footprint.

Savings banks are particularly prominent in continental Europe, where banking systems have traditionally emphasized stability, relationship banking, and prudent risk-taking over high-return strategies. Well-known examples include the Sparkasse in Germany, Sparkasse in Austria, Caisse d’Épargne in France, and Kutxabank in Spain. This Wikipedia article provides examples from other countries.

Cooperative Banks and Credit Unions

Cooperative banks and credit unions are deposit-taking institutions organized on a member-owned and member-governed basis, meaning that customers are simultaneously the owners of the institution, which determines how they are governed and from whom they operate. They perform the same core functions as other retail-oriented banks where they accept deposits, extend loans, and provide payment, savings, and basic financial services.

Because ownership is tied to membership rather than external shareholders, cooperative banks and credit unions typically pursue objectives centerd on service provision, financial stability, and long-term sustainability, rather than seek profits. This governance structure tends to encourage conservative practices such as low risk taking, and relationship-based lending.

Cooperative banks and credit unions primarily serve households and small and medium-sized enterprises, especially in segments that may be underserved by large commercial banks. Their strong local presence and relationship banking model make them important providers of retail credit, agricultural finance, and SME lending. In many countries, they form extensive networks, with local cooperative units supported by central institutions that provide liquidity management, risk pooling, and indirect access to capital markets.

From a regulatory perspective, cooperative banks and credit unions are subject to standard banking regulation. Larger cooperative banking groups may be designated as systemically important and subjected to enhanced oversight.

Examples include Desjardins Group (Canada), Rabobank Group (Netherlands), Crédit Agricole (France), and DZ Bank (Germany), Navy Federal Credit Union (USA), Saraswat Bank (India), Bank Rakyat (Malaysia).

S.123: Money Market Funds (MMFs)

Money market funds (MMFs) are collective investment schemes that invest primarily in short-term, high-quality, and highly liquid financial instruments with modest returns. MMFs also supply short-term funding to governments, banks, and large corporations. Their defining characteristic is that their fund shares are designed to be close substitutes for bank deposits, even though MMFs are legally investment funds rather than deposit-taking institutions.

MMFs operate largely in the background of the financial system. Households rarely interact with them directly, but firms, financial institutions, and public entities use them extensively for cash management. Despite this limited visibility, MMFs are important players in the financial system since they transform short-term savings into market-based funding, they play a key roledsssdsss in money markets, monetary policy transmission, have also caused financial instability in times of economic stress.

MMFs can be split into two broad categories:

Constant Net Asset Value (CNAV) Money Market Funds

Constant Net Asset Value (CNAV) MMFs are designed to maintain a stable unit value, typically issued at one monetary unit per share (for example, USD 1 or EUR 1). This stability is achieved through strict portfolio constraints where CNAV MMFs invest exclusively in short-term and highly rated instruments that are subjected to strong regulatory oversight, where maturity dates, credit quality, issuer concentration, and liquidity buffers are carefully tracked. A typically type of asset they hold are short-term government treasury bills that yield interest payments. Since the investment value is fixed at the unit price, the interest earned is split among the shareholders. Regulations vary considerably across countries but usually focus on some sort of fixed portfolio allocation by asset types, e.g. 60% of the portfolio should only be treasury bills with a short-term maturity (less than 90 days or even lower), and 20–30% should be highly rated (e.g. AAA financial products), and so on.

Practically, CNAV MMFs function as cash-management vehicles rather than return-seeking investments. They are primarily used by institutional investors, corporate treasuries, and public entities to park surplus liquidity while preserving nominal capital value and ensuring same-day access to funds. Usually, any institution with a decent financial buffer would use these to prevent decay of value that can occur by just holding money in bank accounts especially when inflation rates are high.

The principal borrower sectors associated with CNAV MMFs are general government (S.13), through treasury-bill issuance, and, to a lesser extent, highly rated deposit-taking corporations (S.122). Households rarely invest directly, but might be passively participating through institutional investments in their organizations.

The defining feature of CNAV MMFs, the commitment to a stable share value, also creates a deposit-like run risk. If confidence in the fund’s ability to maintain par value weakens, investors have a strong incentive to redeem early. The canonical example is the 2008 run on U.S. money market funds, triggered by the failure of Lehman Brothers. In September 2008, the Reserve Primary Fund, a large, and the very first, CNAV MMF, held short-term debt issued by Lehman Brothers. When Lehman defaulted, the market value of those securities fell sharply, and the fund’s net asset value dropped below USD 1 per share, an event known as breaking the buck. This was the first time a major U.S. retail CNAV MMF failed to maintain its stable value. Once investors realized that a CNAV fund could incur losses, redemptions accelerated rapidly, not only from the Reserve Primary Fund but across the broader CNAV MMF sector. Investors rushed to redeem shares before potential losses were allocated, creating a classic first-mover advantage similar to a bank run. Within days, billions of dollars flowed out of prime CNAV MMFs, severely disrupting short-term funding markets for banks and corporations.

This episode forced extraordinary public intervention. The U.S. Treasury introduced a temporary guarantee of MMF shares, and the US Federal Reserve established emergency liquidity facilities to support money markets. This experience directly informed post-crisis regulatory reforms. In the United States and other jurisdictions, regulators restricted the scope of CNAV MMFs, introduced liquidity fees and redemption gates, and required many private-debt MMFs to shift to variable net asset value (VNAV) structures (described below). In several countries, CNAV status is now largely confined to government MMFs, where underlying assets carry minimal credit risk.

Examples of CNAV MMFs include government liquidity funds managed by large asset managers such as BNY Mellon, BlackRock and Aberdeen.

Variable Net Asset Value (VNAV) Money Market Funds

Variable Net Asset Value (VNAV) MMFs allow the value of fund shares to fluctuate continuously with the market value of underlying assets. Unlike CNAV MMFs, VNAV funds make valuation changes explicit, thereby avoiding any implicit promise of value stability. This reduces deposit-like features and weakens first-mover advantages associated with runs when stable share values are not maintained as in the case of CNAVs.

VNAV MMFs invest in short-term, high-quality instruments, but their portfolios typically include a larger share of private short-term debt rather than CNAV-like safe funds. Common holdings include commercial paper, certificates of deposit, short-dated corporate notes, and, in some cases, unsecured or secured bank instruments with slightly longer residual maturities. Through these investments, VNAV MMFs channel short-term savings into wholesale fund markets, and support liquidity management of the banks and capital financing for large non-financial corporations.

As a result, the principal borrower sectors associated with VNAV MMFs are deposit-taking corporations (S.122) and non-financial corporations (S.11). Investors are predominantly institutional, such as corporate treasuries, pension funds, and asset managers, rather than households.

Although VNAV MMFs reduce the risk of sudden runs driven by fixed-price expectations, they are not immune to market stress. During periods of heightened uncertainty, valuation losses, liquidity shortages, or concerns about asset quality can still trigger large redemptions, particularly where funds hold less liquid private instruments. For this reason, regulation of VNAV MMFs focuses on valuation transparency, liquidity risk management, portfolio diversification, and investor disclosure, rather than on price-stabilisation mechanisms.

In many countries, post-2008 financial crisis reforms explicitly encouraged or required private-debt MMFs to adopt VNAV structures, on the grounds that fluctuating prices better reflect underlying risks and improve market discipline. VNAV MMFs are therefore a central component of efforts to shift money market funding away from deposit-like structures toward more transparent market-based intermediation.

Popular examples include institutional VNAV money market funds offered by asset managers such as Fidelity Investments, and Santanders.

S.124: Non–Money Market Investment Funds

Non–money market funds (non-MMFs) are collective investment vehicles that pool funds from investors to acquire longer-term financial and real assets. Unlike MMFs (S.123), non-MMFs do not aim to preserve a stable share value, and their units are not close substitutes for deposits. Their net asset values fluctuate with market prices, and investors bear market and liquidity risk directly. In the SNA these funds constitute the core of market-based financial intermediation, in contrast to bank-based intermediation carried out by deposit-taking corporations (S.122).

This distinction reflects how savings are transformed into financing. In bank-based systems, savings end up on bank balance sheets, where banks assume credit and liquidity risk and extend loans that remain on their books. By contrast, S.124 funds channel savings through capital markets rather than through banks. They invest primarily in marketable securities, such as equities, government bonds, corporate bonds, and real-estate-related instruments, allowing savings to be transformed into tradable financial claims whose value is determined by market prices rather than by bank lending terms.

Non-MMF investment funds connect household and institutional savings to governments, corporations, and real assets via equity, bond, and property markets. Although households often interact with these funds only indirectly, such as through pension schemes, insurance products, or long-term savings plans, S.124 funds are among the most influential investors in modern financial systems. Their portfolio allocations affect asset prices, influence the cost and availability of market financing, and play a central role in the transmission of domestic and global financial shocks, particularly through sudden valuation changes and cross-border capital flows.

Non-MMF investment funds are differentiated by the type of assets they primarily hold. We briefly cover the major non-MMF types:

Equity Investment Funds

Equity investment funds place most of their money in shares (equity) issued by companies. When an investor buys shares, they are buying a partial ownership stake in a firm and become entitled to a share of its profits, usually through dividends or increases in share prices. Equity investment funds pool money from many investors and use it to buy shares in a large number of companies. By pooling investments across many companies and sectors, equity funds help spread risk, making equity investment accessible to households and institutions that would otherwise face excessive exposure by investing directly in individual stocks. Equity funds can also specialize is specific type of portfolios such as finance, tech, military, AI, etc.

Equity funds are risk-bearing capital. This means they supply funding that does not have to be repaid like a loan, but instead absorbs risk where if a company performs well, investors benefit, and if it performs poorly, investors may incur losses.

Equity funds also play an important role in helping crowdsource or set prices of the shares. This market “discovery” process helps determine the value of companies. Because these funds continuously buy and sell shares in response to economic news and company performance, they help ensure that share prices reflect expectations about future profits and risks. Not that this process is not risk free, but prices changes do tend to be stable for well-established firms, as opposed to newer firms or emerging sectors.

From an accounting perspective, the main recipients of equity fund investment are non-financial corporations (S.11). Many equity funds invest internationally, meaning that domestic savings are used to finance firms abroad, linking household wealth to global production and ownership structures.

Equity investment funds are regulated under securities and investment-fund frameworks, which focus on protecting investors rather than guaranteeing returns. Regulation emphasizes transparency, rules for valuation of assets, diversification rules, and disclosure of risks. Unlike banks, equity funds are not required to hold capital buffers to absorb losses because investors themselves bear the investment risk.

Well-known examples include equity funds managed by BlackRock, Vanguard, and Amundi.

Bond Investment Funds

Bond investment funds invest primarily in debt securities, commonly known as bonds. When a bond is issued, the borrower, such as a government or a company, receives funds in exchange for a promise to make regular interest payments and to repay the principal at a specified maturity date. Bond funds therefore pool money and use it to buy a diversified portfolio of these debt instruments.

Bond investment funds therefore channel savings into medium- and long-term borrowing. The purchase of bonds provides financing outside the banking system. This can also help determine the cost of borrowing in the economy, influence interest rates, the shape of the yield curve (which shows how borrowing costs vary with maturity), and credit conditions for both public and private borrowers.

Regulation of bond investment funds focuses on investor protection and market transparency. Standard regulatory requirements include disclosure of credit risk, accurate valuation of assets, liquidity management practices, and governance structures. Funds that invest in lower-rated or less liquid bonds are typically subject to heightened disclosure and risk-management expectations.

Examples include fixed-income funds managed by PIMCO, Fidelity Investments, and Allianz Global Investors.

Mixed or Balanced Funds

Mixed or balanced funds invest in a combination of equities and debt securities, rather than focusing on a single asset class. Most mixed funds follow predefined asset-allocation rules, such as maintaining a fixed proportion of shares and bonds or adjusting allocations gradually in response to market conditions. This structure allows investors to gain exposure to multiple segments of financial markets through a single investment.

The primary function of mixed funds is portfolio diversification. By spreading investments across asset classes with different risk and return characteristics, these funds aim to balance growth potential from equities with income and relative stability from bonds. For many investors, especially households, mixed funds offer a way to participate in capital markets without having to manage asset allocation decisions themselves. Typically, a regular household would approach a bank to setup some fund, and the advisor at the bank would recommend some combination of mixed or balanced funds, or even a portolio of these.

Through their combined holdings of equities and bonds, mixed funds simultaneously provide financing to non-financial corporations (S.11) and general government (S.13), as well as to financial corporations that issue debt securities. Their target sectors are therefore more diffuse than those of single-asset funds, reflecting their broad market exposure.

Regulation of this category follows standard investment-fund frameworks and focuses on transparency and investor protection, with particular emphasis on clear disclosure of investment strategy, risk profile, asset-allocation rules, and benchmark selection.

Well-known examples include multi-asset funds offered by Vanguard, Schroders, and Blackrock.

Real Estate Investment Funds

Real estate investment funds, as the name suggests, allocate most of their assets to property and real-estate-related investments, either by owning real estate directly or by investing in entities that specialize in property ownership and management. Their core economic function is to channel financial savings into the acquisition, development, and management of residential and commercial property, thereby linking capital markets to the built environment.

These funds operate on a market basis and usually on a large scale. Although households rarely interact with real estate investment funds directly, their activities can have a substantial influence on housing markets, commercial real estate prices, rental conditions, and patterns of urban development. Real estate investment funds affect both real-estate supply and valuation by financing offices, retail space, logistics facilities, and rental housing, with spillovers to employment, construction activity, and local public finances.

The immediate recipient sector of their investment is typically non-financial corporations (S.11) engaged in real estate and construction, but the economic impact extends well beyond corporate balance sheets to local and regional economies.

Regulation of real estate investment funds combines general investment-fund rules with real-estate-specific safeguards. Supervisory frameworks place emphasis on consistent valuation of illiquid assets, limits on leverage, liquidity risk management, and the alignment of redemption terms with the liquidity of underlying property holdings. These issues are especially important for open-ended funds that offer frequent redemptions while holding assets that cannot be sold quickly. Post COVID, some well-know construction groups (e.g. Signa in Austria) went bankrupt, and since they were highly leveraged liquidation of tangible and intangile assets, and claims from lenders can lead to several years or even decades of legal proceedings.

Well-known examples of real estate investment funds include those managed by Brookfield, Blackstone, Starwood Capital. These large funds oversee diversified portfolios across residential, commercial, and infrastructure-related property markets across the globe.

Related note: Real Estate Investment Trusts (REITs)

Real Estate Investment Trusts (REITs) are a closely related concept, but they are not automatically part of this fund category in the SNA. REITs are a legal and tax structure designed to hold income-producing real estate and distribute rental income to investors. While many REITs resemble real estate investment funds, their classification depends on what they primarily do. When a REIT functions mainly as a collective investment vehicle, pooling investor funds to hold and manage property, it is treated in the SNA in a manner similar to real estate investment funds and may be classified under S.124. When a REIT is primarily engaged in operational real estate activities, such as development, construction, or active property services, it is classified instead as a non-financial corporation (S.11). Examples of REITs that operate largely as investment vehicles include Prologis, Simon Property Group, and Vonovia.

Hedge Funds and Other Investment Funds

Hedge funds and other specialized investment funds are a diverse group of collective investment vehicles that go for non-traditional or less constrained investment strategies. This may include the use of leverage, derivatives, short selling, relative-value and arbitrage trades, or investments in alternative asset classes such as commodities, distressed debt, private credit, or volatility-linked instruments. These funds are fully exposed to market valuation changes, and investors explicitly bear investment risk.

In particular, arbitrage strategies of hedge funds can help align prices across related markets, short selling can contribute to the incorporation of negative information into asset prices, and derivatives trading can redistribute risk among market participants. At the same time, the use of leverage and reliance on wholesale funding can make some hedge funds amplifiers of market stress, particularly when positions unwind rapidly.

Hedge funds interact most intensively with financial corporations (S.12), such as prime brokers, banks, and derivatives counterparties, but their activities can also affect non-financial corporations (S.11) and governments indirectly through asset prices, bond yields, and market liquidity. Households rarely invest directly in hedge funds and participation usually occurs through institutional investors, high-net-worth individuals, or indirectly via pension funds and endowments.

Regulation of hedge funds and other specialized investment funds varies considerably across jurisdictions. Regulatory frameworks usually focus on disclosure, risk reporting, leverage monitoring, and oversight of systemic exposures, especially where funds are large, highly leveraged, or closely interconnected with the banking system. To some extent this reflects a policy trade-off between preserving market efficiency versus containing financial stability risks, on which opions vary considerably.

Concrete examples include hedge funds and alternative investment platforms operated by firms such as Bridgewater Associates, Citadel, Millennium Management, and Man Group. Other specialized investment funds include private credit and distressed-debt funds managed by groups such as Apollo Global Management and Ares Management.

S.125: Other Financial Intermediaries

Other financial intermediaries are financial institutions that engage in financial intermediation without accepting deposits from the public. S.125 institutions finance their activities through own capital, borrowing, securitisation, or the issuance of debt and equity securities. In SNA terms, they transform financial resources and risks outside the traditional banking system and are part of the non-banking financial intermediation (NBFI) category.

Other financial intermediaries often operate in niches that are less well served by banks, provide asset-based or contract-specific finance, or intermediate funds for long-term or policy-driven purposes. While households and firms may interact with these institutions only occasionally, or without recognising them as financial intermediaries, their cumulative importance for credit conditions, investment financing, and financial stability is substantial.

The SNA groups a diverse set of institutions within S.125, of which the main ones are described below:

Consumer and Business Credit Finance Companies

Consumer and business credit finance companies provide loans and credit products outside the traditional banking system, often focusing on narrowly defined credit segments. Typical products include vehicle finance, installment loans, point-of-sale (PoS) credit, leasing, and short- to medium-term business loans. Their main function is to supply credit in situations where speed, contractual flexibility, asset specificity, or borrower risk profiles make standard bank lending less suitable or less attractive. These institutions primarily target households (S.14), for example through auto loans, consumer durables financing, or revolving credit , and, in some cases, small and medium-sized enterprises, particularly where financing is closely tied to specific assets or transactions.

Consumer and business credit finance companies expand access to credit, but often at higher interest rates than bank loans, reflecting greater credit risk, shorter maturities, or reduced collateral. As a result, regulation typically places strong emphasis on consumer protection, including disclosure of effective interest rates, fair lending practices, affordability assessments, and conduct standards.

In addition to stand-alone financial institutions, many large non-financial firms, especially large chains, provide credit directly to customers to support sales of their products. Examples include installment financing for vehicles, appliances, or equipment. These activities are usually carried out through dedicated finance subsidiaries, allowing firms to separate commercial operations from credit risk while facilitating sales.

Prominent examples of consumer and business credit finance companies include Santander Consumer Finance which specializes in auto and retail lending, Ally Financial with a strong focus on vehicle finance, and Capital One which combines credit card and installment lending.

Leasing Companies

Leasing companies provide asset-based financing, allowing firms to use equipment, vehicles, machinery, or other productive assets without purchasing them outright. Instead of owning the asset, the leasee pays periodic lease payments over the asset’s economic life. The primary role of leasing is to support capital formation while reducing upfront investment costs, aligning financing more closely with asset use and cash-flow generation.

Leasing is important for non-financial corporations (S.11), especially small and medium-sized enterprises (SMEs) and capital-intensive sectors such as transport, manufacturing, construction, and logistics. In these sectors, leasing can improve access to investment finance, by tying financing directly to the underlying asset. These are also sectors where traditional bank lending may be constrained by collateral requirements, balance-sheet capacity, or risk considerations. Funding for leasing companies comes from equity, bank borrowing, and/or capital markets. Although leasing contracts resemble loans, the legal ownership of the asset often remains with the leasing company, which also bears residual value risk.

Leasing companies also carry specific risk profiles, including exposure to asset price cycles, technological obsolescence, and sectoral downturns. Regulation therefore focuses on accounting standards, risk management, contract transparency, and, where relevant, consumer and business protection rules.

Prominent global leasing firms include DLL, Siemens Financial Services, and Arval. Highly specialized leasing firms also operate in niche markets, such as Triton International for container leasing, Air Lease Corp for commercial aircrafts, and Ayvens for vehicles and fleet leasing.

Factoring and Trade Finance Firms

Factoring and trade finance firms provide short-term financing linked to receivables and trade transactions, allowing firms to convert outstanding invoices into immediate liquidity. Instead of waiting for customers to pay, which can happen after 30 to 60 days or longer especially in export invoices, firms can sell or pledge receivables to a financier in exchange for upfront cash. Therefore, the core function of these institutions is to support liquidity, working-capital management, particularly in sectors with long payment cycles, seasonal production, or significant cross-border exposure.

These firms primarily serve non-financial corporations (S.11), especially small and medium-sized enterprises (SMEs) and export-oriented firms. In domestic contexts, factoring improves cash-flow stability and reduces dependence on overdrafts or short-term bank loans. In international trade, trade finance instruments, such as letters of credit (LoCs), guarantees, and export receivables finance, help mitigate payment risk, currency risk, and counterparty risk, facilitating cross-border transactions that might otherwise be too risky for buyers or sellers.

Factoring and Trade Finance Firms fund themselves through bank credit lines, capital markets, or parent institutions. Regulation of this sector is generally activity-based and focuses on contract enforceability, credit risk management, transparency of fees. In a cross-border setting, this can also include compliance with trade regulations, sanctions regimes, and anti–money laundering standards.

Examples include global banking groups HSBC, Citi Group, Raiffeisen Bank International, BBVA, as well as specialized trade credit risk firms Coface, and Allianz Trade.

Securitisation Vehicles

Securitisation vehicles are financial entities that transform pools of illiquid loans, such as mortgages, auto loans, credit-card receivables, or corporate loans, into tradable securities, most commonly mortgage-backed securities (MBS) and asset-backed securities (ABS). They convert long-term, illiquid credit into marketable instruments, effectively redistributing funding and credit risk across financial markets.

Securitisation vehicles are somewhere between loan originators and capital-market investors. Deposit-taking corporations (S.122) issue loans and transfer them to a legally separate special-purpose vehicle (SPVs, discussed later), which then issue securities purchased by investment funds, pension funds, insurers, and other institutional investors (S.124).

Securitisation can expand credit supply by allowing banks to transfer loans off their balance sheets to SPVs, freeing regulatory capital and substituting market-based funding for deposits (SPVs fund the loans rather than deposits in banks). This allows banks to increase their lending without requiring them to increase their equity. This process can weaken underwriting incentives and transmit risk to the wider financial system.

A central vulnerability of securitisation lies in the way loans are sliced into tranches with different loss priorities. While this structure is designed to tailor risk–return profiles, it makes returns highly sensitive to modelling assumptions and hides the quality of the underlying loans. In practice, heavy reliance on credit ratings can mask this complexity, giving better rated or senior tranches an appearance of safety even when they are ultimately backed by weak or highly risky assets. Additionally, the originate-to-distribute (OTD) model, where banks offload their loans on to SPVs, can weaken underwriting incentives, while reliance on market liquidity exposes securitized assets to price collapses and fire sales under stress. Since securitization increases interconnectedness in the financial sector, this also creates systemic risks in the system.

This vulnerability became evident during the 2007-08 global financial crisis, when losses on U.S. subprime mortgage securitisations rapidly propagated through the financial system, despite many exposures having been moved off bank balance sheets. As a result, regulation was strengthened through enhanced disclosure, risk-retention requirements, stricter capital treatment, and macroprudential monitoring. Despite this tighter oversight, securitisation remains a central component of market-based finance, and global issuance of ABS and MBS today exceeds pre-crisis levels.

Large institutions active in securitisation markets include global banks and arrangers such as Citigroup, Deutsche Bank, and JPMorgan Chase, as well as large asset managers and investors such as BlackRock and PIMCO.

Development Lenders and Policy-Oriented Intermediaries

Development lenders and policy-oriented intermediaries advance public policy objectives such as economic development, infrastructure provision, housing finance, innovation, climate transition, and financial inclusion. Unlike commercial banks, many of these institutions provide long-term loans, guarantees, or equity finance without accepting deposits from the public.

Development lenders are designed to address market failures that limit private financing. These failures often arise from long investment horizons, high upfront costs, political or regulatory risks, uncertain returns, or coordination problems across sectors and regions. This sector offers long maturities, risk-sharing instruments, guarantees, and/or concessional terms, to enable investment that might otherwise be postponed or not undertaken at all. As such, they play a central role in capital formation influencing productivity growth, and can even support transition to new technologies.

Development lenders typically fund themselves through bond issuance, capital contributions, retained earnings, and/or explicit government backing. They resources are deployed through direct lending, project and infrastructure financing, credit guarantees, or equity participation. Their main counterpart sectors include general government (S.13) and non-financial corporations (S.11), often in co-financing arrangements with private lenders.

While domestic development banks can expand investment and smooth credit cycles, they also involve fiscal and liability risks. Explicit or implicit government guarantees mean that losses may ultimately fall on the public sector, even when lending decisions are made at arm’s length. For this reason, oversight typically combines financial disciplines, such as risk management, capital adequacy requirements, accountability requirements, and budget evaluations, and so on.

Prominent examples of domestic development banks include KfW in Germany, Bpifrance in France, Cassa Depositi e Prestiti in Italy, Banco Nacional de Desenvolvimento Econômico e Social (BNDES) in Brazil, and the Development Bank of Japan in Japan.

Side note: International financial institutions (IFIs) such as the European Investment Bank (EIB), the International Monetary Fund (IMF), and the World Bank perform similar functions at the cross-border level, but are recorded in national accounts as part of the rest of the world sector rather than as domestic financial institutions. These will be discussed in another post

Guarantee and Credit Enhancement Schemes (non-insurance)

Guarantee and credit enhancement schemes provide explicit guarantees or partial risk coverage that protect lenders against borrower default. Unlike insurance companies, they do not price risk using actuarial models or risk-based premiums. Their core economic function is to shift credit risk away from lenders, making it easier or cheaper for borrowers to access finance.

Conceptually, these schemes work by substituting public or institutional balance-sheet strength for private credit risk. By covering part or all of a potential loss, they allow banks and investors to lend to borrowers that would otherwise be considered too risky. Usual beneficiaries include small and medium-sized enterprises, exporters, infrastructure projects, firms in volatile or emerging markets, and increasingly green or technology-oriented “sunrise” sectors. Importantly, guarantees support credit provision without the guarantor directly extending loans.

Most guarantee schemes are policy-driven and closely linked to public finance. They are usually funded through government capital, guarantee fees, or explicit budget backstops rather than actuarially priced premiums. Their risks are therefore contingent where costs only materialize if defaults occur and guarantees are called. This makes their fiscal impact limited in normal times but potentially significant during economic downturns.

Regulatory oversight focuses on fiscal risk management, transparency of contingent liabilities, eligibility rules, and governance. Because large-scale guarantee calls can affect public budgets, these schemes are typically coordinated with finance ministries and budget authorities and are often used in public–private partnerships, counter-cyclical policy, and efforts to mobilize private investment in underserved or emerging sectors.

Some key examples include Bpifrance that provides guarantee and risk-sharing activities for SMEs, UK Export Finance which provides guarantees to support UK exporters, and the Export–Import Bank of the United States, which provides loan-guarantee and credit-enhancement operations. We will discuss Export-Import bank in detail below as a special case of financial services.

S.126: Financial Auxiliaries

Financial auxiliaries (S.126) support the functioning of the financial system without themselves primarily lending, investing, or pooling risk on their own balance sheets. Their defining role is to provide services, infrastructure, and information. Although they are often less visible in macro-level balance sheets, disruptions in this sector can hinder payments, trading, and market confidence. This is a fairly diverse category, where the key subcategories are discussed below:

Payment Service Providers

Payment service providers (PSPs) are financial auxiliaries that ensure money can move quickly, securely, and efficiently between economic agents. Their core function is the execution, processing, and settlement of payment transactions, including card payments, bank transfers, mobile payments, and online transactions. PSPs act as technical and operational intermediaries, linking banks, merchants, and end users, but they usually do not take deposits or extend credit on their own account.

PSPs interact most intensively with households (S.14), non-financial corporations (S.11), and deposit-taking institutions (S.122), which hold the underlying customer accounts and provide settlement balances. Because payment systems underpin virtually all economic activity, regulation focuses on operational resilience, cybersecurity, consumer protection, data security, and compliance with anti–money laundering and counter-terrorist financing (AML/CFT) requirements.

Prominent examples of payment service providers include Visa, Mastercard, and PayPal, as well as newer digital and mobile payment platforms, such as Moneygram and Ria that operate alongside traditional banking infrastructure.

Securities Brokers and Dealers

Securities brokers and dealers are financial auxiliaries that provide access to financial markets by facilitating the buying and selling of securities such as shares, bonds, and derivatives. Brokers act as agents, executing trades on behalf of clients without taking ownership of the securities, while dealers trade on their own account, holding inventories of securities in order to provide market liquidity and support continuous trading.

Brokers and dealers connect investors with issuers and trading venues, reduce search and transaction costs, and help ensure that markets function smoothly even when supply and demand are imbalanced. While dealers may temporarily hold securities on their balance sheets, this activity is incidental to their core function of facilitating market transactions rather than providing long-term credit or investment intermediation. Their primary counterparties include financial corporations (S.12), large non-financial corporations (S.11), and typically higher-wealth households (S.14) or institutional investors.

Regulation emphasizes disclosure, transparency and investor protection. Where dealers engage in proprietary trading or market-making, regulation also imposes capital, margin, and risk-management requirements to limit systemic risk and ensure resilience under stress.

Prominent global examples include the brokerage and dealer operations of Goldman Sachs and Morgan Stanley, alongside various others.

Stock and Derivatives Exchanges

Stock and derivatives exchanges operate organized marketplaces where financial instruments, such as shares, bonds, futures, and options, are traded under standardized rules. Their main role is to centralize trading activity, ensure transparent price formation, and provide the institutional framework within which buyers and sellers can transact efficiently and with legal certainty. Exchanges also set listing standards, trading rules, and disclosure requirements for issuers, and therefore shape access to capital markets and the quality of information available to investors.

Exchanges interact primarily with financial institutions (S.12), such as banks, and investment firms, and with issuing firms in the non-financial corporate sector (S.11) that raise capital through listed securities. Households (S.14) participate only indirectly, through brokers, pension, insurance, or investment funds, rather than by trading directly on exchanges.

Given their central role in financial markets, exchanges are subject to intensive public oversight. Regulation focuses on market transparency, trading surveillance, prevention of market abuse, operational resilience, and systemic stability, particularly where disruptions could propagate rapidly across financial markets. Oversight is typically shared between securities regulators and, in some jurisdictions, central banks or market authorities. A related point, that used to be a topic of conversation maybe a couple of decades ago, was the relationship between exchange locations and high speed broadband access that minimize latency time especially when high-frequency trading (HFT) is concerned.

Well-known exchanges include the New York Stock Exchange (NYSE), NASDAQ, and the London Stock Exchange. This Wikipedia post lists all the major stock exchanges in the world.

Clearing Houses and Central Counterparties (CCPs)

Clearing houses and central counterparties (CCPs) manage risks arising after trades are executed in securities and derivatives markets. They interpose themselves between buyers and sellers, becoming the buyer to every seller and the seller to every buyer. In doing so, CCPs guarantee contract performance and significantly reduce counterparty credit risk.

CCPs achieve this risk mitigation through a combination of netting, margin requirements, and collateral management. Netting reduces the total exposure in the system by offsetting obligations across multiple trades, while margin and collateral requirements ensure that participants post financial resources to cover potential losses. These mechanisms enhance market confidence and allow high volumes of trading to take place safely and efficiently. CCPs interact almost exclusively with financial corporations (S.12), particularly banks, broker-dealers, and investment funds that are active in securities and derivatives markets.

Because CCPs concentrate risk and are deeply embedded in market infrastructure, they are considered systemically important financial institutions. A failure of a major CCP could transmit shocks across multiple markets and jurisdictions. As a result, CCPs are subject to some of the most intensive regulation and oversight in the financial system. This includes stringent prudential requirements, frequent stress testing, robust margining frameworks, recovery and resolution planning, and close supervision by central banks, securities regulators, and market authorities.

To some extent, a CCP firm, LCH, potentially mitigated the losses during the 2008 global financial crisis by closing their position in Lehman Brothers in an orderly manner. What collapsed were positions that were not handled through CCPs that later cascaded through the system.

Prominent global examples of CCPs include LCH and CME Clearing, which clear large volumes of interest rate derivatives, futures, and other financial contracts central to global financial markets.

Financial Institution Administrators and Managers

Administrators and managers of financial institutions provide essential administrative and fiduciary services that allow financial products and institutions to operate smoothly and at scale. Their activities include fund administration, record keeping, valuation support, transfer agency services, custody-related administration, and trustee or fiduciary functions. While they do not intermediate funds or take investment risk themselves, they are critical to the integrity and day-to-day functioning of financial markets.

These service providers interact primarily with financial corporations (S.12) , such as investment funds, insurance companies, pension funds, and asset managers, while indirectly serving households (S.14) whose savings are channelled through these vehicles.

Regulation focuses on fiduciary responsibility, operational resilience, cybersecurity, and continuity of service. Because failures in these functions can disrupt large volumes of financial assets simultaneously, oversight increasingly treats them as part of the critical financial infrastructure.

Prominent examples include State Street and BNY Mellon, when acting in fund administration, custody, and trustee capacities rather than as lenders or investors.

Flotation Corporations

Flotation corporations specialize in supporting the issuance of new securities, particularly during initial public offerings (IPOs), bond issuances, and other primary market transactions. Their core function is to help issuers access capital markets by advising on issuance structure, timing, pricing, regulatory compliance, and investor communication, as well as coordinating the technical and legal steps required to bring new securities to market. They also play a key role in placing securities with investors, often working alongside underwriting firms.

These entities interact most closely with non-financial corporations (S.11) seeking to raise equity or debt financing and with financial corporations (S.12) involved in underwriting, distribution, and market making. While flotation activities are frequently carried out within larger investment banks or financial groups, the issuance-related function itself is auxiliary in nature, since it facilitates raising capital without intermediating funds or taking long-term balance sheet risks. The aim of these firms is to ensure issuers and investors receive transparent and reliable information when new securities are issued.

Examples include issuance and advisory functions within well-known financial institutions such Goldman Sachs and Morgan Stanley, as well as specialized advisory boutiques that focus exclusively on capital market transactions such as Jefferies, Rothschild & Co, and Lazard.

Crypto-Asset Exchanges

Crypto-asset exchanges are a relatively new entrant in S.126 that provide digital platforms for the buying, selling, and trading of crypto-assets, including cryptocurrencies and, increasingly, tokenized financial instruments. Their core economic function is to match buyers and sellers, facilitate price setting of digital assets, and execute transactions in crypto markets.

Crypto-asset exchanges resemble traditional securities or derivatives exchanges in form, but operate in markets that are newer, more volatile, and often less standardized. They typically do not intermediate savings, take deposits, or assume credit risk on their own balance sheets but instead provide trading infrastructure for processing crypto transactions.

Crypto-asset exchanges interact most intensively with households (S.14), which account for a large share of retail trading activity, and with financial corporations (S.12), including hedge funds, proprietary trading firms, and payment providers. Participation by non-financial corporations (S.11) is growing, particularly where firms use crypto-assets for treasury management, cross-border payments, or tokenized fundraising.

Although crypto-assets were originally designed to operate outside the traditional banking system, most crypto trading today occurs on centralized platforms that function as market intermediaries. These exchanges provide custody, order matching, and settlement services and are economically closer to conventional trading venues than to decentralized, self-organizing peer-2-peer systems, as originally envisoned for digital currencies.

Examples of dedicated crypto-asset exchanges include Coinbase, and Binance, but currently, almost all online trading platforms also allow cryto trading.

Crowdfunding Platforms

Crowdfunding platforms enable financing by directly connecting fund seekers with individuals or institutions willing to provide funds, usually through online marketplaces. The platform provides the digital infrastructure, payment processing, standardized information disclosure, and contractual frameworks that allow transactions to occur efficiently. Crowdfunding can take several forms, including donation-based funding, debt-based crowdfunding (peer-to-peer lending), and equity crowdfunding, where investors receive ownership stakes. Such platforms lower barriers to finance for projects and firms that may be too small, too new, or too risky to access bank lending or capital markets. It also allows households to participate directly in funding entrepreneurial, and sometimes niche activities.

Crowdfunding platforms primarily link households (S.14) with small and medium-sized non-financial corporations (S.11), start-ups, and creative projects. Some platforms also facilitate lending or investment by institutional investors, but retail participation remains a defining feature. Because these platforms expose households directly to project risk, regulation places strong emphasis on transparency, disclosure standards, investor education, and limits on retail investor exposure, as well as on safeguards around payment processing and custody of funds.

Prominent examples include Kickstarter and Indiegogo for donation- and reward-based crowdfunding, as well as equity-focused platforms such as Seedrs, which facilitate ownership-based investment in early-stage firms.

S.127: Captive Financial Institutions and Money Lenders

Captive financial institutions and money lenders (S.127) provide financial services within a narrow circle of related entities, act as holding or treasury vehicles, or supply highly specialized credit to constrained borrowers. What unites this relative diverse group is that their financial activity is ancillary, captive, or fringe in nature.

Holding companies are inward-facing by design. Their activities are directed almost exclusively toward subsidiaries within the same corporate group, typically in the non-financial corporate sector (S.11) or, in the case of financial conglomerates, other financial corporations (S.12). They do not normally intermediate funds between unrelated parties, accept deposits, or provide credit to the general public.

Below we discuss the more well-known capitive institutions:

Holding Companies

Holding companies are captive financial institutions whose primary function is to own, control, and manage equity stakes in subsidiaries, rather than to produce goods or provide non-financial services themselves. Their main role is therefore one of ownership coordination and internal governance, rather than financial intermediation in the markets. Within corporate groups, holding companies act as central nodes for strategic control, capital allocation, risk management, and group-wide financial planning.

Holding companies play an important role in shaping financing structures and cross-border capital flows. They may centralize equity ownership, issue debt on behalf of the group, manage dividend flows, or serve as vehicles for mergers, acquisitions, and restructuring. While this can enhance efficiency and coordination within large groups, it can also obscure the location of economic activity, complicate transparency, and raise issues related to taxes, leverage concentration, and regulatory arbitrage, particularly in multinational enterprises.

Regulation of holding companies is generally based on corporate and securities law. Additional oversight applies when holding companies control regulated financial institutions, are designated as systemically important, or play a key role in complex cross-border group management.

Prominent examples of corporate holding companies include Alphabet, Berkshire Hathaway, and Volkswagen AG, each of which uses a holding-company structure to coordinate ownership and financial strategy across a wide range of subsidiaries. The public sector can also have holding companies, for example, the city of Vienna owns Wien Holding, a massive conglomerate that runs almost all of the city’s infrastructure.

Treasury Centers

Treasury centres are specialized units within large corporations or multinational enterprises (MNEs) that manage internal financial operations for the group as a whole. Their primary purpose is to centralize, consolidate, and optimize financial management, monitor liquidity, access to funding, and financial risk controls across affiliated entities.

Typical treasury centre activities include cash pooling (consolidating surplus and deficit cash positions across subsidiaries), intercompany lending and borrowing, foreign-exchange and interest-rate risk management, and the coordination of group-wide funding strategies, such as bond issuance or external credit lines. In some cases, treasury centers also act as internal banks, setting transfer prices for capital and allocating financing internally based on strategic priorities.

Treasury centers interact indirectly with financial corporations (S.12) especially such as banks, clearing institutions, and payment service providers, through which external transactions are executed, and with general government (S.13) in matters relating to taxation, reporting, and regulatory compliance.

Although treasury centres can enhance efficiency and risk management within corporate groups, they also raise important transparency and governance issues, particularly in cross-border contexts. Regulation therefore focuses on tax compliance, transfer pricing rules, anti–money laundering, and disclosure of intra-group financial flows. Because treasury centres can play a significant role in profit shifting, leverage allocation, and the location of taxable income, they have become a focal point of international tax policy and corporate governance scrutiny.

Well-known examples of treasury centres are embedded within global corporate groups such as Siemens, Shell, and Unilever, where centralized treasury operations support complex global production and financing networks.

Special Purpose Vehicles (SPVs)

Special Purpose Vehicles (SPVs) are legally distinct entities created to carry out a narrowly defined financial or economic function. They are established for specific purposes such as holding particular assets, isolating financial risk, issuing securities, or financing a single project.

SPVs are widely used in structured finance, securitisation, project finance, and infrastructure investment. In securitisation, an SPV may purchase a portfolio of loans, such as mortgages or consumer credit, and issue bonds backed by the cash flows from those assets, thereby transforming illiquid loans into tradable securities. In large-scale infrastructure projects, an SPV is often created to own, finance, and operate a single asset, such as a toll road, airport, power plant, or renewable-energy project. In both cases, the SPV structure allows risks and cash flows to be clearly defined and contractually allocated.

A central characteristic of SPVs is legal and financial separation, often referred to as ring fencing. Assets and liabilities are isolated from the balance sheet of the sponsoring entity, limiting recourse to the sponsor and protecting investors from unrelated risks. This ring fencing can lower financing costs and attract a wider range of investors, but it can also obscure the true distribution of risk.

While SPVs can improve financial efficiency and risk allocation, they also raise important issues of transparency. SPV usually are subjected to accounting standards, regulatory frameworks, and macroprudential oversight.

Examples include project-finance and infrastructure SPVs sponsored by asset managers and infrastructure investors such as Macquarie Group, Brookfield Asset Management, Apollo Global Management, and Carlton Group.

Money Lenders and Pawnshops

Money lenders and pawnshops provide small-scale, short-term credit, often at relatively high cost, to individuals who have limited or no access to mainstream financial institutions such as banks. This could be due to low income, limited credit history, or higher perceived risk. Loans are typically unsecured or secured against personal property, such as jewellery, electronics, or vehicles, which serves as collateral. In the case of pawnshops, the loan is explicitly tied to a pledged asset that can be sold if the borrower fails to repay, making collateral liquidation a central feature of the business model. While these services can provide short-term financial relief at the household level, the high effective interest rates and fees commonly associated with such loans raise concerns about borrower vulnerability, repeat borrowing, and debt traps.

Regulation of money lenders and pawnshops is therefore focused more on consumer protection. Authorities typically impose licensing requirements, caps on interest rates or fees, mandatory disclosure of total borrowing costs, rules on collateral valuation and recovery, and so on with a focus on on preventing predatory lending practices.

Global operators in this segment include Cash Converters and EZCORP.

S.128: Insurance Corporations

Insurance corporations pool, price, and transfer risk in exchange for insurance premiums. They do this by transforming uncertain future losses into predictable premium-based payments to spread risks across policyholders and over time.

Due to this risk-pooling role, insurance corporations provide financial protection to households and firms and reduce uncertainty in economic decision making. At the same time, insurers do accumulate reserves, which are technically outstanding (but still unclaimed) liabilities, which they usually invest in financial markets. As a result, insurance corporations are also major long-term institutional investors.

Most households and firms interact with insurers episodically, when paying premiums or filing claims. Nevertheless, insurers exert a continuous influence on the real economy by stabilizing income and balance sheets, supporting investment and entrepreneurship, and contributing to financial stability through long-horizon investment behavior.

Insurance corporations are usually split into non-life insurance and life insurance firms, with reinsurance firms being a specific case of non-life insurance firms that we will also discuss below:

Non-Life Insurance Corporations

Non-life insurance corporations provide coverage against short- to medium-term risks, such as property damage, motor accidents, health expenses, natural catastrophes, and liability claims. Their core economic role is to protect households and firms against adverse events that could otherwise generate sudden income losses, disrupt business operations, or cause sharp balance-sheet shocks. By pooling risks across many policyholders, non-life insurers transform uncertain individual losses into predictable and manageable payments.

Their primary target sectors are households (S.14) and non-financial corporations (S.11), with policies often tailored to specific activities such as home ownership, vehicle use, professional liability, or industrial production. Non-life insurance is characterized by relatively short-duration liabilities, frequent premium payments, and regular claim settlement, which distinguishes it from life insurance and pension provision.

Regulation of non-life insurers therefore focuses on solvency requirements, risk-based capital standards, pricing rules, and consumer protection. The main aim is to ensure that insurers can meet claims even under stressed conditions, such as periods of elevated accident rates or large natural catastrophes. Supervisory frameworks also emphasize catastrophe risk modelling, reinsurance arrangements, and governance standards, reflecting the exposure of non-life insurers to correlated losses.

Well-known examples include Allianz, AXA, and Zurich Insurance Group.

Life Insurance Corporations

Life insurance corporations provide financial products that combine risk protection with long-term saving, including term and whole-life insurance, annuities, and savings-linked policies. Their central economic function is intertemporal income smoothing. In other words, they allow households to transform current income into future payments that are contingent on longevity, retirement, or survivorship. In this way, life insurers help households manage fundamental life-cycle risks such as premature death, outliving accumulated savings, or providing financial security to dependants. Many life insurance contracts also allow benefits to be transferred to designated beneficiaries, usually kids, making them a key instrument for intergenerational wealth transfer.

Because life insurance obligations extend over long horizons, often several decades, life insurers accumulate large technical reserves and invest them in long-term assets such as government and corporate bonds, equities, real estate, and infrastructure assets. As a result, life insurers are among the most important long-term institutional investors in the economy, influencing capital-market conditions, demand for long-maturity securities, and the financing of governments and firms. While their direct counterparties are households (S.14), their investment activities create strong indirect links to non-financial corporations (S.11), general government (S.13), and financial markets more broadly.

Regulation of life insurance corporations is actuarially driven and highly stringent, reflecting the long duration and complexity of their liabilities. Supervisory frameworks emphasize long-term solvency, adequate technical provisioning, asset–liability matching, valuation of guarantees, and strong governance and risk-management standards.

Well-known examples of life insurance corporations include Prudential plc, MetLife, and Generali.

Reinsurance Corporations

Reinsurance corporations provide insurance to insurance companies rather than directly to households or firms. Their core economic function is risk redistribution within the insurance system. They enable this by allowing primary insurers to transfer part of their exposure to large, volatile, or highly correlated risks, such as natural catastrophes, pandemics, or major liability events, to a broader and more diversified risk pool. Thus, reinsurers enable insurers to write policies that would otherwise exceed their risk-bearing capacity.

Through global diversification across regions, lines of business, and time horizons, reinsurers reduce the concentration of risk and enhance the resilience and continuity of insurance supply, particularly following major loss events. They play a stabilizing role after disasters by absorbing losses that would otherwise impair insurers’ balance sheets and force abrupt reductions in coverage or sharp premium increases. In institutional terms, their counterparties are almost exclusively insurance corporations (S.128), although their investment activities link them indirectly to capital markets and governments.

Because reinsurance exposures can be very large and globally interconnected, reinsurers are subject to specialized and often internationally coordinated prudential regulation. Supervisory frameworks place strong emphasis on capital adequacy, catastrophe and tail-risk modeling, concentration limits, retrocession arrangements (reinsurance of reinsurers), and risk management protocols.

Leading global reinsurance groups include Munich Re, Swiss Re, and Hannover Re.

S.129: Pension Funds

The primary function of pension funds is to accumulate and manage financial assets in order to provide retirement income to households. Their defining feature in the SNA is the creation of pension entitlements, which represent long-term claims of households on future income.

While individual interaction with pension funds is often infrequent and passive, usually through payroll contributions or periodic statements, pension funds are among the largest institutional investors in many economies. Their portfolio choices shape capital market development, influence government borrowing conditions, and play a central role in inter- and intra-generational resource allocation.

In the SNA, distinction is made between defined benefit and defined contribution schemes that determines who bears financial risk and how shocks are transmitted across generations. In practice pension funds can be a mix of the two although, most now learn towards defined contributions. Let’s discuss both of these below:

Defined Benefit Pension Funds

Defined benefit (DB) pension funds are retirement schemes in which the level of benefits is specified in advance, typically based on a formula linked to an employee’s earnings history, years of service, or final salary. From an economic perspective, the defining feature of DB schemes is that investment risk, longevity risk, and interest-rate risk are borne primarily by the sponsor, rather than by individual participants. The sponsor may be a private employer, a group of employers, or the public sector.

DB pension funds play an important role in stabilizing household consumption over the life cycle and reducing uncertainty about retirement outcomes by providing predictable retirement income. However, this stability for households comes at the cost of risk concentration for sponsors. If investment returns fall short, interest rates decline, or retirees live longer than expected, sponsors must increase contributions or absorb funding shortfalls. As a result, DB pension obligations can represent significant long-term liabilities for corporations and governments, with direct implications for corporate balance sheets or public finances.

Regulation of defined benefit pension funds places strong emphasis on funding adequacy and actuarial discipline. Supervisory frameworks require regular actuarial valuations, prudent assumptions about returns and longevity, recovery plans for underfunded schemes. The objective is to ensure that promised benefits remain credible and that funding risks are identified and addressed well before they threaten pension payments or sponsor solvency.

Examples of dedicated DB pension funds include CalPERS (Canada), APG (Netherlands), and NEST (UK).

Defined Contribution Pension Funds

Defined contribution (DC) pension funds are retirement schemes in which future benefits depend on accumulated contributions and investment performance, rather than being guaranteed in advance. The defining economic feature of DC schemes is that investment risk and longevity risk are borne primarily by the individual participant, not by the employer or the pension provider. Retirement income therefore reflects contribution histories, asset allocation choices, and prevailing financial-market conditions at the time of retirement.

From a macroeconomic perspective, DC pension funds play a central role in long-term household saving and capital accumulation. Contributions are steadily channelled into financial markets over long horizons, making DC funds a major conduit through which household savings flow into equities, bonds, and other long-duration assets. As a result, DC pension systems are tightly linked to market-based finance and amplify the connection between household wealth, asset prices, and financial cycles. They also shift retirement outcomes from being institutionally insured to being market-contingent, increasing the importance of financial literacy and portfolio design.

Since individuals bear market risk directly, regulation of DC pension funds places strong emphasis on fiduciary responsibility and transparency. Supervisory frameworks typically focus on clear disclosure of fees, risks, and investment options, and the design of default investment strategies (such as target-date or lifecycle funds) that guide participants who do not actively manage their portfolios. The aim is not to eliminate risk, but to ensure that it is clearly understood, fairly priced, and appropriately managed.

Examples include retirement products and pension funds managed by Vanguard and Fidelity Investments, and APG.

Special cases of finanicial institutions

Not all financial institutions fit neatly into a single functional category in the SNA. These are several cases, where institutions whose economic significance becomes clear only when “purpose” or functional classification is combined with ownership, control, and mandate. We will briefly discuss some of these:

Multinational Enterprises (MNEs)

Multinational enterprises (MNEs) are corporate groups that control production or service-providing units in more than one economy, typically through majority ownership or effective control. In the SNA, MNEs are analyzed through ownership-based classifications that cut across standard sector boundaries. Their defining characteristic is that they are foreign controlled.

Depending on their principal activity, MNEs may therefore appear in non-financial corporations (S.11) or financial corporations (S.12). From a financial perspective, MNEs are important because they frequently operate in capital markets, make use of treasury centres and special purpose entities, and rely on complex cross-border financing structures. Therefore MNEs play a central role in foreign direct investment, profit shifting, the global allocation of risk and capital, and can have a significant impact on the balance of payments.

Financial MNEs include global banking and insurance groups such as HSBC, JPMorgan Chase, and AXA.

Export–Import (ExIm) Banks

Export–import banks are specialized financial institutions created to support international trade and cross-border investment, typically by providing financing, guarantees, and risk mitigation for exporters and foreign buyers of domestic goods and services. They are often publicly owned or publicly mandated.

Export–import banks sit at the intersection of trade policy and financial intermediation. They are designed to address market failures in trade finance, such as political risk, long maturities, large project size, or borrower risk that private financial institutions may be unwilling or unable to bear on their own. In doing so, they influence export performance, foreign investment, and the international allocation of capital, while operating alongside private banks and insurers.

In the SNA, most export–import banks are classified as other financial intermediaries (S.125). Ex-Im banks finance their activities through bonds, government capital, budgetary transfers, or wholesale market funding, and provide loans, guarantees, and credit enhancements linked to export transactions.

Examples of export–import banks primarily classified under S.125 include the Export–Import Bank of the United States, the Export-Impact Bank of China, and UK Export Finance. A comprehensive list of ExIm banks is provided on this Wiki page.

Sovereign Wealth Funds (SWFs)

A sovereign wealth fund (SWF) is an entity created and owned by the general government to hold, manage, or administer assets, including foreign investments, with the aim of achieving specific financial objectives. The assets managed by SWFs may originate from fiscal surpluses, privatization proceeds, or revenues from natural resources.

Under the SNA, SWFs are included in S.127 (captive financial institutions) when they actively manage portfolios and provide financial services on a market basis primarily to the general government, for example by acting as an internal asset manager or treasury vehicle. In such cases, the SWF functions as a captive unit within the public sector rather than as a market-facing investment fund.

By contrast, if an SWF does not actively provide financial services on a market basis and instead operates as an integral part of government fiscal operations, it is classified within general government (S.13). An exception applies when the SWF is resident in another economy, in which case it is recorded in the rest of the world from the perspective of the home country.

Some of the largest Sovereign Wealth Funds include: Norway Government Pension Fund, China Investment Corporation, Abu Dhabi Investment Authority, Kuwait Investment Authority (the oldest SWF), and GIC (Singapore). The Sovereign Wealth Fund Institute (SWFI) tracks the SWFs around the globe.

Non-Bank Financial Intermediation (NBFI)

Over the past few decades, a growing share of credit creation, liquidity provision, and risk transformation has shifted outside the traditional banking system. This broad and diverse set of activities is commonly referred to as non-bank financial intermediation (NBFI), or more controversially as shadow banking. While the term shadow implies something hidden (or unregulated), most of these activities are fully recorded in macroeconomic statistics and increasingly subject to oversight. What distinguishes them is not secrecy, but the fact that they operate outside deposit-taking banks.

From SNA’s perspective, NBFI is distributed across several financial subsectors where most activity is concentrated in three purpose categories:

• S.124: Non–money market investment funds, which engage in market-based intermediation through bond funds, loan funds, real estate funds, and hedge funds.
• S.125: Other financial intermediaries, which provide lending and credit intermediation without accepting deposits, including finance companies, leasing firms, securitization vehicles, and trade finance institutions.
• S.127: Captive financial institutions and money lenders, such as treasury centres, holding companies, special purpose vehicles, and some sovereign wealth funds operating as internal asset managers.

Understanding NBFI is essential for macroeconomic analysis, because a bank-centric view of finance is no longer sufficient. Savings are increasingly channelled to borrowers through investment funds, market-based lending, securitisation, and corporate financing structures, rather than through banks. This, in turn, impacts credit creation, how interest rates are transmitted, how shocks propagate across borders, and how savings are converted into investment.

NBFI is also central to financial stability. After the global financial crisis, policymakers recognized that risks can accumulate outside the traditional banking perimeter, particularly where non-bank intermediaries rely on short-term market funding, employ leverage, or are closely interconnected with banks. It is for this reason institutions such as the Financial Stability Board (FSB) were set up and given the mandate to monitor NBFI closely.

Why Non-Bank Finance Matters and its regulation

Banks operate within a clearly defined regulatory perimeter. They are subject to capital and liquidity requirements, reserve rules, deposit insurance, activity restrictions, and continuous supervision. As a result, risks associated with bank lending and deposit-taking are relatively transparent and systematically monitored.

NBFIs often perform similar economic functions, such as providing credit, transforming maturities, or managing liquidity, but typically without taking deposits, without access to central bank backstops, and under more fragmented regulatory regimes. This does not make non-bank finance inherently problematic. On the contrary, it diversifies funding sources, support capital market development, and reduces reliance on banks.

Non-bank intermediaries rely on market funding, wholesale borrowing, or investor capital, and typically pass risk directly to investors, sponsors, or counterparties through tradable securities or fund shares. While bank-based intermediation is highly visible in macroeconomic statistics and subject to consolidated prudential oversight, non-market-based intermediation requires more granular information on financial instruments, leverage, liquidity, and counterparties to be properly understood.

Therefore it is not surprising that concerns arise when risk builds up outside the regulatory perimeter, especially when non-bank entities are tightly linked to banks through funding relationships, guarantees, or shared asset exposures. The global financial crisis of 2007–08 demonstrated how distress originating in non-bank structures, such as securitization vehicles and wholesale funding markets, can quickly spread across the entire financial system.

To analyse NBFI effectively, the SNA places emphasis on specific financial instruments that are central to market-based finance, including:

• Repurchase agreements (repos) and securities lending with cash collateral, which provide short-term secured funding.
• Margin lending, especially in securities and derivatives markets.
• Securitized loans and structured credit instruments, which transform loans into tradable securities.

The SNA also highlights the importance of detailed information on financial derivatives, broken down by risk category (interest rate, foreign exchange, equity, credit, commodity), instrument type (options, futures, swaps, forwards), and clearing status (exchange-traded, centrally cleared OTC, and non-cleared OTC). These distinctions are crucial for identifying leverage, liquidity mismatches, and counterparty exposures in non-bank finance.

Crypto-Assets and Crypto-Based Finance

Over the past decade, crypto-assets and crypto-based financial activities have emerged as a new and rapidly evolving part of the financial landscape. These activities include digital tokens used as means of exchange, speculative investment assets, platforms for trading and lending, and decentralized financial arrangements built on distributed ledger technology.

As with non-bank financial intermediation, crypto finance challenges traditional, bank-centric views of finance. It enables payments, asset trading, borrowing, and lending without relying on conventional financial intermediaries such as banks or regulated exchanges. However, unlike most NBFI activities, crypto systems frequently operate outside established legal, regulatory, and statistical frameworks, which creates unique challenges for macroeconomic measurement and financial stability analysis.

How Crypto Fits into the SNA Framework

From the perspective of the SNA, crypto-related activities appear (when identifiable) across existing categories:

• Crypto-assets may be recorded as financial assets, non-financial produced assets, or non-produced assets, depending on whether they represent a claim on another unit, are used as a means of payment, or function primarily as stores of value.
• Crypto exchanges, brokers, and custodians, when organized as resident firms, are classified according to their principal activity — often as financial auxiliaries (S.126) or other financial intermediaries (S.125).
• Crypto platforms resemble non-bank financial intermediation, but classification depends on whether there is identifiable intermediation, balance-sheet risk, and a resident institutional unit.

Despite these classifications, decentralized finance (DeFi) poses particular challenges, as many arrangements lack a clearly identifiable institutional unit, complicating their treatment in standard accounts. Given that crypto can have real economic consequence, especially the rising water and energy costs, regulation still being discussed on how to best record the true impact of these digital tokens.

Why Crypto Matters for Macroeconomic Analysis

Crypto-assets matter for macroeconomic analysis not because of their current size relative to the financial system, but because they blur traditional distinctions between money, financial assets, and payment systems. In some contexts, crypto-assets are used for cross-border payments, capital transfers, or speculative investment, affecting capital flows, household balance sheets, and, potentially, monetary sovereignty. Additional, since crypto activity often crosses borders instantaneously and operates outside traditional intermediaries, it also complicates the measurement of financial openness, capital flows, and external positions, particularly in economies with capital controls or weak financial infrastructure.

At the same time, crypto markets exhibit high price volatility, strong pro-cyclicality, and rapid shifts in investor sentiment, which limit their usefulness as stable stores of value or units of account. As a result, crypto-assets currently behave more like speculative financial assets than like stable investment funds, with wealth effects concentrated among a relatively small group of holders.

Crypto and Financial Stability Considerations

Crypto-based finance has increasingly attracted attention from financial stability authorities, especially where it intersects with the traditional financial system. Risks arise when crypto activities involve (1) leverage and maturity transformation, such as lending funded by short-term, redeemable tokens, (2) Stablecoins that promise price stability but rely on reserve assets and redemption mechanisms, and (3) interconnections with banks and investment funds, through custody, lending, or investment exposures.

Unlike banks, most crypto entities do not have access to central bank liquidity, deposit insurance, or formal resolution frameworks. As a result, crypto markets are particularly vulnerable to runs, and disorderly price adjustments, as seen in repeated episodes of sharp market stress.

Why Crypto Poses a Distinct Statistical Challenge

A key difference between crypto finance and other forms of NBFI is that many crypto arrangements lack a clearly identifiable institutional unit. The SNA is built around resident entities, balance sheets, and transactions between units. When financial activity is organized through decentralized protocols without legal ownership or control, standard sectoral accounting becomes difficult or impossible.

This does not mean crypto activity is economically irrelevant, but it does mean that current macroeconomic statistics may still understate or misclassify it, particularly where activity substitutes for traditional payments, savings, or cross-border transfers.

Closing remarks

In this post, we set out on a daunting task to map the financial sector in a systematic way. We used the System of National Accounts (SNA) framework to organize the main types of financial institutions and the economic purposes they serve. We covered the core building blocks of modern finance: central banks, deposit-taking institutions, investment funds, non-bank intermediaries, insurers, pension funds, and several important special cases, and discussesd how savings are channelled, risks are managed, liquidity is provided, and real economic activity is financed.

At the same time, lets underscore a key point: this is only a high-level overview. Real-world financial systems are far more complex. Many institutions span multiple, often intertwined, financial categories. Financial instruments continue to evolve, and an increasing share of financial activity takes place outside traditional banking channels. This makes measurement, monitoring, and regulation of this sector extremely challenging, especially as boundaries get blurred.

Therefore, this post should be seen as a starting point. In future posts, we will return to many of these themes in more detail, focusing on specific institutions, instruments, and risks, and will continue exploring the fascinating world of finance!

About the author

Asjad Naqvi is an economist based in Vienna, Austria. He has been teaching, doing research, and policy work on macro-financial-climate topics for over a decade. You check his profile and projects on GitHub or on his personal website. You can connect with him via Medium, Twitter/X, BlueSky, LinkedIn, or simply via email: asjadnaqvi@gmail.com.

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