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The structure of financial markets and financial assets

2.4.1a Money and the money supply (A-level only)

Money Works Because It Performs Four Functions and Has the Right Characteristics

Definition

Money supply: the total stock of money in circulation in an economy at a given time, including cash and bank deposits, and divided into narrow money and broad money.

  1. Money is anything widely accepted in payment for goods and services.
  2. It has four functions: a medium of exchange, a unit of account, a store of value and a standard of deferred payment.
  3. Money removes the need for a double coincidence of wants found in barter.
  4. Good money is durable, portable, divisible, acceptable, scarce and uniform.
Note
  • The functions explain what money does.
  • The characteristics explain why an asset works well as money.
  • Barter is inefficient because it needs a double coincidence of wants.

Money Serves as a Medium of Exchange, a Unit of Account, a Store of Value and a Standard of Deferred Payment

  1. As a medium of exchange, money is accepted in payment for goods.
  2. As a unit of account, it lets prices be compared on one scale.
  3. As a store of value, it holds purchasing power over time.
  4. As a standard of deferred payment, it allows borrowing and lending over time.
Example
  • A ten pound note is a medium of exchange accepted across the UK.
  • High inflation weakens money's role as a store of value.
  • A mortgage relies on money as a standard of deferred payment.

Good Money Is Durable, Portable, Divisible, Acceptable, Scarce and Uniform

  1. Durability and portability let money be kept and carried easily.
  2. Divisibility lets it pay for goods of many different values.
  3. Acceptability and uniformity mean everyone will take it and trust it.
  4. Scarcity keeps money valuable, so an over-issue erodes its worth.
Case study
  • Gold long served as money because it was durable, scarce and divisible.
  • Cigarettes acted as money in some prisoner-of-war camps.
  • Assets that are hard to divide or store make poor money.

An Asset Works as Money Only If It Meets the Functions and Characteristics

  1. An asset works as money if it meets the functions and characteristics.
  2. It fails if it cannot store value or is not widely accepted.
  3. So each feature can be tested against a candidate asset.
  4. This explains why some assets serve as money and others do not.

Match Each Characteristic to the Function It Supports

Exam technique
  • Name the four functions and explain each in turn.
  • Link a characteristic to why the asset serves that function.
  • Contrast money with the inefficiency of barter.
Common Mistake
  • Do not confuse the functions of money with its characteristics.
  • Functions are what money does; characteristics are why it works.

The Money Supply Splits Into Narrow and Broad Money by Liquidity

  1. The money supply is the total stock of money in the economy.
  2. Narrow money is notes, coins and operational deposits used as a medium of exchange.
  3. Broad money is narrow money plus less-liquid savings and time deposits.
  4. The distinction rests on how liquid each type of money is.
Note
  • Liquidity is how easily an asset can be used to spend.
  • Narrow money is the most liquid; broad money is less so.
  • Broad money is harder for the authorities to control.

Money Can Be Ranked From Most to Least Liquid

  1. Cash and current-account deposits can be spent at once.
  2. Savings and time deposits must first be moved or matured.
  3. So deposits can be ranked from most to least liquid.
  4. Narrow money captures the most liquid, broad money a wider set.
Example
  • Notes and coins plus current accounts are narrow money.
  • A fixed-term savings account is part of broad money.
  • The Bank of England publishes monetary aggregates on this basis.

Narrow Money Tracks Spending While Broad Money Reflects Bank Lending

  1. Narrow money is closest to spending in the economy.
  2. Broad money reflects the wider lending of the banking system.
  3. Broad money is harder to control because banks create most of it.
  4. So the two aggregates give different signals about the economy.
Case study
  • Most broad money is created by commercial banks when they lend.
  • Only a small share of the money supply is physical cash.
  • This makes broad money hard for the central bank to control directly.

Classify Deposits by Liquidity Into Narrow or Broad Money

  1. Place the most liquid items in narrow money.
  2. Add less-liquid deposits to reach broad money.
  3. Rank deposits rather than treating them as identical.
  4. So the classification follows liquidity throughout.

Define Each Aggregate by Its Liquidity

Exam technique
  • Define narrow and broad money in terms of liquidity.
  • Explain why broad money is harder to control.
  • Classify an example deposit into the right aggregate.
Common Mistake
  • Do not treat all bank deposits as identical.
  • Rank them by liquidity into narrow and broad money.
Self review
  • Name the four functions of money.
  • What is the double coincidence of wants?
  • Name three desirable characteristics of money.
  • What is narrow money and what is broad money?
  • Why is broad money harder to control, and on what basis are the two distinguished?

2.4.1b Financial markets, assets and bond prices (A-level only)

The Financial Sector Channels Savings Into Productive Investment

Definition

Bond: a financial asset issued by a government or firm to borrow money, which pays the holder a fixed coupon and whose market price varies inversely with market interest rates.

  1. The financial sector channels savings into investment.
  2. It lets savers lend to firms and individuals who want to borrow.
  3. Banks act as intermediaries between savers and borrowers.
  4. Efficient intermediation supports investment and growth.
Note
  • Banks are intermediaries, not just holders of deposits.
  • Channelling saving into investment supports growth.
  • The sector also manages risk and provides markets.

The Sector Lends, Enables Payments, Provides Markets and Manages Risk

  1. It facilitates saving and lends to firms and individuals.
  2. It facilitates the exchange of goods and services through payments.
  3. It provides forward markets in currencies and commodities.
  4. It provides a market for equities and helps assess and manage risk.
Example
  • A bank lends pooled savings to a firm to fund new machinery.
  • A forward currency market lets an exporter fix a future exchange rate.
  • The London Stock Exchange provides a market for company shares.

Intermediation Turns Idle Saving Into Productive Investment

  1. Savers rarely know the firms that need funds.
  2. Banks pool saving and pass it on as loans.
  3. This turns idle saving into productive investment.
  4. More investment can raise the economy's capacity and growth.
Case study
  • The Harrod-Domar model links more saving to more investment and growth.
  • A weak financial sector can starve firms of the funds they need.
  • So financial development can support wider economic development.

The Sector's Role Reaches Well Beyond Storing Deposits

  1. The sector connects those with funds to those who need them.
  2. It supports spending, investment and the management of risk.
  3. When it works well, it lifts investment and growth.
  4. So its role reaches well beyond simply storing deposits.

Stress Intermediation and Its Link to Growth

Exam technique
  • List the roles, then focus on channelling saving into investment.
  • Link efficient intermediation to investment and growth.
  • Where relevant, connect to development via the Harrod-Domar model.
Common Mistake
  • Do not treat banks as merely holding deposits.
  • They are intermediaries that channel funds from savers to borrowers.

The Money, Capital and Foreign Exchange Markets Each Serve a Different Need

  1. The money market is for short-term borrowing and lending.
  2. The capital market is for long-term finance through bonds and shares.
  3. The foreign exchange market is where currencies are traded.
  4. Firms raise funds through debt or through equity.
Note
  • Debt finance is borrowing that must be repaid with interest.
  • Equity finance is selling ownership shares in the firm.
  • When market interest rates rise, bond prices fall: the two move inversely.

Each Market Serves Short-Term, Long-Term or Currency Finance

  1. The money market deals in short-term funds and liquidity.
  2. The capital market raises long-term funds for investment.
  3. The foreign exchange market lets firms buy and sell currencies.
  4. Each market serves a different financing need.
Example
  • A firm issues shares on the capital market to fund expansion.
  • A bank borrows overnight on the money market to meet its needs.
  • An importer uses the foreign exchange market to buy euros.

Debt Is Repaid With Interest While Equity Gives Up Ownership

  1. Debt must be repaid with interest whatever the firm earns.
  2. Equity gives up a share of ownership and future profit.
  3. Debt raises fixed costs but keeps ownership intact.
  4. Equity avoids repayment but dilutes control.
Case study
  • A bond paying £5 a year on a £100 price yields 5100=5%\dfrac{5}{100}=5\%1005​=5%.
  • If the price rises to £125, the £5 payment is a yield of 5125=4%\dfrac{5}{125}=4\%1255​=4%.
  • So a higher bond price means a lower yield.

When Market Interest Rates Rise, Bond Prices Fall

  1. A bond pays a fixed coupon each year, so its yield depends on its price.
  2. A government bond also has a maturity date, the point at which the issuer repays the bond's face (par) value to the holder.
  3. When market interest rates rise, newly issued bonds pay more, so existing bonds become less attractive.
  4. The price of existing bonds falls until their yield matches the higher market interest rate.
  5. So when market interest rates rise, bond prices fall: the two move inversely.
Example
  • Worked example: a bond pays a fixed coupon of £5 a year. Its price is roughly the coupon divided by the market interest rate (yield).
  • If the market interest rate is 5%, the price is £50.05=£100\dfrac{\pounds 5}{0.05} = \pounds 1000.05£5​=£100.
  • If the market interest rate rises to 10%, buyers will only pay a price at which the £5 gives them 10%: £50.10=£50\dfrac{\pounds 5}{0.10} = \pounds 500.10£5​=£50.
  • So the rise in interest rates from 5% to 10% halves the bond's price from £100 to £50, showing the inverse relationship.

Keep the Terms Straight

Exam technique
  • Match each market to short-term, long-term or currency finance.
  • Distinguish debt that is repaid from equity that is owned.
  • Remember that when market interest rates rise, bond prices fall.
Common Mistake
  • Do not confuse debt with equity, or think a rise in market interest rates raises bond prices.
  • Debt is repaid with interest; equity is ownership, and bond prices fall when market interest rates rise.
Self review
  • What is the core role of the financial sector in the wider economy?
  • Name the money, capital and foreign exchange markets and say what each does.
  • What is the difference between debt and equity finance?
  • Why do bond prices fall when market interest rates rise?
  • Which market provides long-term finance?
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Financial markets connect surplus units, whose income is greater than current spending, to deficit units, whose current spending is greater than income. They let savings become borrowing, investment and spending in the wider economy.

A simple way to picture the flow of funds is:

  • Direct finance: investors buy securities issued by deficit units in financial markets.
  • Indirect finance: savers place funds with intermediaries, which then lend or invest on their behalf.

Key markets include money markets for short-term debt, capital markets for longer-term finance, and foreign exchange markets for currency trading.

Direct finance happens when investors buy a claim directly from the borrower, such as a pension fund buying newly issued corporate bonds. Although a pension fund pools savers' money, that specific bond purchase is still classed as direct finance because the firm issues the security directly into the market. Indirect finance happens through intermediaries such as banks, building societies and insurers, which stand between savers and borrowers by issuing their own liabilities and then making loans or other investments. Banks also perform maturity transformation, using short-term deposits to fund longer-term loans. In exam questions, focus on whether the borrower issues the claim directly or whether an intermediary stands in between.

An important exam point is that a financial asset for one person is often a liability for someone else. Your bank deposit is your asset, but it is the bank's liability because the bank owes you that money.

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A [     ] has income greater than current spending; a [     ] spends more than its income.

2.4.1 The structure of financial markets and financial assets Revision Guide

  1. A Level
  2. /Economics
  3. /2.4.1 The structure of financial markets and financial assets