Financial Management · The nature and role of money markets

Functions of Money Markets for ACCA FM

Updated 11 October 2026 · Fact-checked

The money market is the wholesale market for short-term borrowing and lending, usually up to one year. Its functions are to let surplus cash earn a return, let borrowers fund short-term gaps, help banks, companies and governments manage liquidity, and support monetary policy. In exams, match the function to the user.

Understand Functions of Money Markets

A money market is where institutions lend and borrow large sums for short periods, normally up to one year. It is not a physical place. It is a network of banks, companies, governments and dealers who deal by phone or screen.

The basic idea is timing. Some organisations have cash they will not need for days or months. Others need cash now but will receive money later. The money market connects them. The lender earns interest instead of leaving cash idle. The borrower avoids the cost and delay of raising long-term finance.

The main functions are:
- Short-term borrowing and lending between surplus and deficit parties.
- Liquidity management: holding assets that can be turned into cash quickly with little risk of loss.
- Funding for banks: banks with deposit shortfalls borrow from banks with surpluses, so they can meet customer withdrawals and reserve needs.
- Funding for governments: governments issue short-term securities such as Treasury bills to cover gaps between spending and tax receipts.
- Funding for companies: companies issue short-term paper or borrow to fund working capital, and invest temporary surpluses.
- Monetary policy: central banks use the money market to influence short-term interest rates and the amount of liquidity in the system.

Money market instruments are short-dated, so they carry low risk of price change and are easy to sell. Because of this, returns are usually lower than on long-term capital market investments. Deals are wholesale, meaning large amounts, so large organisations benefit most. Smaller firms usually reach the market indirectly through banks.

Keep the contrast clear. The money market deals with short-term funds. The capital market deals with long-term finance such as shares and bonds. FM questions often ask you to recommend which one suits a given need.

Key rules to remember

Money market definition: Money market = wholesale market for short-term funds, usually up to 1 year; Use this to separate it from the capital market, which deals in long-term finance.
Money market vs capital market: Short-term, low risk, high liquidity (money) vs long-term, higher risk, higher return (capital); Use as a comparison frame when asked to contrast the two.
Simple interest on a short deposit: Interest = Principal × Annual rate × (Days ÷ 365); Use the day-count basis given in the question. Some markets use 360 days.

How to solve Functions of Money Markets questions

Use this method for any written or objective question on the functions of money markets.

1Identify who is involved: bank, company, government or central bank.
2Decide whether that party has surplus cash or a funding shortfall, and for how long.
3Check the time horizon. Up to about one year points to the money market. Longer points to the capital market.
4Name the matching function: lending surplus, borrowing short-term, liquidity management, or funding.
5Link to the need: the party wants low risk, easy access to cash and a return or low-cost funding.
6Where numbers are given, compute interest using principal × rate × days ÷ year basis.
7Finish with a short recommendation or conclusion tied to the scenario.

Quickest way: Who, how long, which function

When to use it: Use for Section A and Section B objective questions where you must pick the correct function or user quickly.

Underline the time period in the question. Over one year rules out the money market.
Spot the party: bank, company or government.
Pick the function: surplus means lend or invest, shortfall means borrow, need for ready cash means liquidity.
Reject options that mention long-term capital, equity issues or high-risk returns.
Pick the remaining option and move on.

Common mistakes in Functions of Money Markets

Saying the money market provides long-term finance for capital projects.
Students blur the money market with the capital market.
Fix: Anchor on time: money market is up to about one year. Long-term projects need capital market funds.
Treating the money market as only a place for banks.
Textbook examples often start with interbank lending.
Fix: Always list banks, companies and governments, and give one use for each.
Listing functions without linking them to the scenario.
Students memorise a list and write it down.
Fix: Tie each function to the organisation in the question, for example a company with seasonal surplus cash.
Assuming money market investments are risk-free.
They are described as low risk.
Fix: Say low risk, not zero. Credit risk and interest rate risk still exist, especially for commercial paper.
Forgetting that liquidity is about speed and certainty of conversion to cash.
Students treat liquidity as just having cash.
Fix: Define liquidity as how quickly an asset becomes cash without loss of value.
Using 365 days when the question gives 360.
Students default to the usual basis.
Fix: Read the day-count basis in the question and use it.

Worked examples

Example 1

A company expects to have $2,000,000 of surplus cash for 90 days before it pays for a new machine. A bank deposit pays 4% a year, using a 365-day basis. Explain which market function this meets and calculate the interest earned.

Show the solution

The company has temporary surplus cash for under one year, so the money market is suitable.
The function is short-term lending or investing of surplus funds, which also helps liquidity management because the deposit matures when cash is needed.
Interest = 2,000,000 × 4% × 90 ÷ 365.
2,000,000 × 0.04 = 80,000.
80,000 × 90 ÷ 365 = 7,200,000 ÷ 365 = 19,726 (rounded to the nearest dollar).

Answer: The company uses the money market to invest surplus cash short-term and keep it available for the machine purchase. Interest earned is about $19,726.

Example 2

Briefly explain how the money market helps a government, a bank and a trading company.

Show the solution

Government: tax receipts and spending do not match in timing. It issues short-term securities such as Treasury bills to cover temporary gaps cheaply.
Bank: it may have a shortfall after customer withdrawals or loan demand. It borrows from other banks with surplus deposits, and lends its own surplus, so it keeps enough liquidity.
Trading company: it has seasonal swings in cash. It invests surpluses in short-term deposits or instruments, and borrows or issues short-term paper when there is a shortfall, avoiding long-term finance for a short-term need.
Common thread: all three match short-term cash surpluses with short-term needs at market interest rates.

Answer: The money market lets governments cover timing gaps, banks manage liquidity and reserves, and companies invest surpluses or fund working capital, all through short-term lending and borrowing.

Exam tips

In Section A, check the time horizon first. Over one year is almost never a money market answer.
In Section C, name the user, the function and the reason. Three short linked points score better than a long list.
Use the scenario facts, such as seasonal cash flow or a known future payment, to justify your recommendation.
Mention low risk and liquidity as benefits, and lower returns as the trade-off.
If interest is asked for, show the formula and the day-count basis so you can earn method marks.

Practice questions from The nature and role of money markets

Functions of Money Markets in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Functions of Money Markets: frequently asked questions

What are the main functions of the money market?

The main functions are to channel short-term funds from lenders to borrowers, help banks, companies and governments manage liquidity, and provide short-term funding. It also gives central banks a route to influence short-term interest rates.

What is the difference between the money market and the capital market?

The money market deals in short-term funds, usually up to one year, with low risk and high liquidity. The capital market deals in long-term finance such as shares and bonds, with higher risk and usually higher returns.

How do companies use money markets to manage liquidity?

Companies invest temporary surplus cash in short-term deposits or instruments that mature when cash is needed. They can also borrow short-term to cover shortfalls, so they do not hold too much idle cash or use long-term finance for short-term needs.

Can small businesses use the money market directly?

Usually not. Money market deals are wholesale and involve large sums. Small businesses normally access short-term funds through their bank, for example by overdraft or deposit accounts.