2.1 Purpose and Role of Money and Financial Markets

Money and financial markets are the plumbing of any modern economy. Before we examine the institutions and rules that make up the UK financial services industry, we need to understand the underlying economic job they do. This section sets out the purpose of money and the functions of financial markets that you will see referenced throughout the rest of the CeMAP Module 1 (FSRE) guide.

The Four Functions of Money

Money is any asset that is generally accepted as payment for goods and services and for the settlement of debts. In the UK, sterling — issued by the Bank of England as banknotes and (in commercial form) as bank deposits — is the official money. Money performs four classic functions:

Without money, exchange would require barter — a direct swap of goods that needs a double coincidence of wants (you must find someone who both wants what you have and has what you want). Money removes that friction, which is why a stable currency underpins economic activity. If money loses its store-of-value function (hyperinflation) or its medium-of-exchange function (banking collapse), commerce contracts sharply.

From Surplus Units to Deficit Units

The economy contains surplus units (households saving for retirement, firms with excess cash, governments running surpluses) and deficit units (first-time buyers needing a mortgage, growing companies needing capital, the State borrowing to fund public spending). Financial markets and institutions sit between them, channelling funds from where they are saved to where they are needed.

graph LR
    SU["Surplus Units<br/>Savers, Investors"] -->|Savings| FM["Financial Markets & Institutions"]
    FM -->|Loans, Capital, Insurance| DU["Deficit Units<br/>Borrowers, Firms, Government"]
    DU -->|Interest, Dividends, Rents| FM
    FM -->|Returns| SU

Without this flow, surplus units would have to find a direct borrower they could trust, and deficit units would have to find someone with exactly the amount they need, exactly when they need it. Markets solve that matching problem.

The Core Functions of Financial Markets

UK financial markets perform five interlocking functions. You should be able to define each and give a UK example.

1. Intermediation

Intermediation is the process by which a middleman — typically a bank, building society, fund manager or insurer — sits between saver and borrower, pooling many small deposits to fund larger loans. A high-street bank takes thousands of deposits of £50 to £5,000 and on-lends them as a single £200,000 mortgage. Intermediation gives savers liquidity (they can withdraw when they wish) and gives borrowers scale (they can borrow more than any one saver could supply).

2. Maturity transformation

Maturity transformation is the linked function of turning short-term liabilities into longer-term assets. Banks take demandable deposits (you can withdraw today) and transform them into 25-year mortgages or 5-year business loans. This is valuable — households want long-dated mortgages, but few savers want to lock up cash for 25 years — but it creates maturity mismatch. If every depositor withdraws at once, the bank cannot recall its mortgages, which is why banks face liquidity risk and why the Prudential Regulation Authority (PRA) imposes liquidity rules.

3. Risk transfer

Financial markets let risks be moved to those best able to bear them. Insurance transfers the risk of a flooded kitchen from a household to an insurer. Derivatives let a UK exporter lock in a euro-sterling exchange rate, transferring FX risk to a speculator willing to take the other side. Without risk transfer, households and firms would self-insure inefficiently or be unable to plan.

4. Liquidity provision

Liquidity is the ability to convert an asset into spendable money quickly and at low cost and with predictable value. The London Stock Exchange provides liquidity to shareholders: you can sell 1,000 shares of a FTSE 100 company in seconds at a price close to the quoted screen price. Liquid markets lower the cost of capital because investors demand a smaller liquidity premium to hold assets they can sell quickly.

5. Payment systems

Money only works if it can move. The UK operates several regulated payment systems that move sterling between accounts:

The Bank of England operates the Real-Time Gross Settlement (RTGS) system through which banks settle obligations between themselves. A failure in RTGS or in a retail scheme like Faster Payments would disrupt commerce almost immediately, which is why payment systems are designated critical infrastructure and supervised by the Bank under the Payment Systems Regulator.

Why This Matters for Retail Consumers

Every CeMP adviser needs to see this picture because every retail product is a specific instance of one of these functions. A cash ISA is a savings product that gives the saver a return from intermediation. A pension is a long-term investment that puts surplus units' money into capital markets. Life insurance is risk transfer. The £20,000 ISA allowance for 2026/27 (frozen until April 2031) is the government's tax-favoured channel for surplus units to supply capital to UK markets. When you understand the function a product performs, you can explain to a client why it suits — or does not suit — their need.

Key Takeaways for the Exam

• Money's four functions are: medium of exchange, unit of account, store of value, standard of deferred payment.
• Markets move funds from surplus units to deficit units through intermediation, maturity transformation, risk transfer, liquidity and payment systems.
• Maturity transformation creates the maturity mismatch that prudential regulation exists to manage.
• The Bank of England's RTGS is the settlement backbone of the UK payment system.
• Each retail financial product maps to one of these market functions.