Money and interest rates

Money and interest rates form a cornerstone of macroeconomics, exploring how central banks influence the economy through monetary policy. This topic examines the functions of money (medium of exchange, unit of account, store of value) and the role of interest rates as the price of borrowing. In the OCR A-Level Economics syllabus, you'll analyse how changes in the Bank of England's base rate affect consumption, investment, and aggregate demand, ultimately impacting inflation and economic growth. Understanding this mechanism is crucial for grasping how policymakers stabilise the economy during booms and recessions.

Interest rates are determined by the supply and demand for money, with the central bank controlling the money supply to influence short-term rates. The transmission mechanism—how rate changes ripple through the economy—is a key concept: higher rates increase the cost of borrowing, reducing spending and cooling inflation, while lower rates stimulate activity. You'll also explore the relationship between nominal and real interest rates, the liquidity preference theory, and the role of quantitative easing. This topic connects to fiscal policy, exchange rates, and the broader macroeconomic objectives of price stability, growth, and employment.

Mastering money and interest rates is essential for evaluating policy effectiveness. You'll learn to assess the limitations of monetary policy, such as liquidity traps and time lags, and consider real-world examples like the 2008 financial crisis or the post-COVID recovery. This knowledge equips you to critically analyse news headlines about central bank decisions and their impact on your daily life—from mortgage rates to the cost of goods.