Syllabus Edition

First teaching 2025

First exams 2027

Central & Commercial Banks (Cambridge (CIE) IGCSE Economics): Revision Note

Exam code: 0455 & 0987

Last updated

The role and importance of central banks

  • A central bank is the main financial institution of a country, responsible for managing the nation’s currency, money supply and interest rates

  • The Central Bank plays a vital role in maintaining stability in the financial system

    • The policy tools at their disposal help to meet government economic objectives and create economic growth

Diagram showing central bank roles: monetary policy, lender of last resort, government's bank, and regulate the banking industry. Arrows indicate relationships.
Central Banks play four important roles in the economy

What do central banks do?

1. Implement monetary policy

  • Monetary policy is the adjustment of interest rates and the money supply so as to influence total demand and meet the inflation target

2. Banker for the government

  • The government sets the annual budget but it is the Central Bank that manages the tax receipts and payments

    • In 2022 there were 5.7 million public sector workers in the UK who had to be paid by the Central Bank each month

3. Banker to the commercial banks – lender of last resort

  • Commercial banks are able to borrow from the Central Bank when they run into short-term liquidity issues

  • Without this help, they might go bankrupt leading to instability in the financial system - and a potential loss of savings for many households

4. Regulation of the banking industry

  • Regulation is when the government sets rules or laws to control the way consumers and producers behave in a market

  • The high level of asymmetric information in financial markets requires that commercial banks are regulated in order to protect consumers

The role and importance of commercial banks

  • Commercial banks are financial institutions that accept deposits from individuals and businesses, and provide loans and other financial services for profit

Roles of commercial banks

  • Accepting deposits

    • Provide safe storage for customers’ money

    • Offer different types of accounts (current, savings, fixed deposit) with varying interest rates

  • Lending to customers

    • Provide loans, overdrafts, and mortgages to individuals and businesses.

    • Generate profit mainly through interest charged on loans

  • Facilitating payments

    • Offer payment services such as debit/credit cards, cheque clearing, and online banking

    • Enable domestic and international transfers (e.g. SWIFT payments)

  • Providing financial advice

    • Advise customers on investments, savings and business finance

  • Foreign exchange services

    • Exchange currencies for trade, travel or investment

Importance of commercial banks

  • Encourage saving

    • They provide a secure place for individuals and firms to save, helping to mobilise funds for investment

  • Support business growth

    • Offer credit facilities for expansion, working capital and start‑up capital.

  • Economic stability

    • Help circulate money in the economy by channelling savings into productive investments

  • Facilitate trade

    • Provide trade finance, letters of credit, and foreign currency for importers and exporters

  • Convenience

    • Offer easy access to financial services through branches, ATMs and online banking

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