How do lower interest rates affect consumers?

Lower interest rates reduce the cost of borrowing and the reward for saving. This incentivises consumers to borrow and disincentivises them from saving. Additionally, lower interest rates tend to push house prices up, allowing homeowners to benefit from increased wealth and leading to higher consumer confidence. This results in increased consumer spending and aggregate demand.

How do lower interest rates affect businesses?

Lower interest rates reduce the cost of borrowing for businesses, incentivising them to borrow more. Businesses also anticipate an increase in consumer spending, which encourages them to increase investment in capital goods to meet the increased demand. This is known as the accelerator effect, leading to further increases in aggregate demand.

How do interest rates affect exchange rates and trade?

Lower interest rates lead to hot money flows out of the country as savers seek higher returns elsewhere, increasing the supply of the domestic currency and causing depreciation. This makes exports cheaper and imports more expensive, improving the trade balance. Higher interest rates attract hot money flows into the country, increasing demand for the currency and causing appreciation, making exports more expensive and imports cheaper.

Y12 Macroeconomics Notes

Monetary Policy | A-Level Economics Notes

Jaisul Naik

05 Feb 2026 • 3 min read

These revision notes cover everything you need to know about Monetary Policy for A-Level Economics. They're designed for students studying AQA A-Level Economics, Edexcel A-Level Economics, and Edexcel International A-Level Economics. Written by Jaisul Naik, UCL Economics graduate and A-Level Economics tutor since 2017.

What are interest rates?

Interest rates are the cost of borrowing or the reward for saving.

What is monetary policy?

Monetary policy is the use of interest rates by the central bank.

This causes a shift in aggregate demand.

What is expansionary monetary policy?

Expansionary monetary policy is when the central bank reduces interest rates.

This causes an increase in aggregate demand.

What is contractionary monetary policy?

Expansionary monetary policy is when the central bank increases interest rates.

This causes a decrease in aggregate demand.

What is the impact of lower interest rates?

Consumers

Lower interest rates lead to a lower cost of borrowing and a lower reward for saving, incentivising more consumption.

Lower interest rates also lead to an increase in the demand for houses, leading to an increase in house prices, causing homeowners to enjoy greater wealth.

Businesses

Lower interest rates lead to a lower cost of borrowing and a lower reward for saving, which allows businesses to invest more in capital.

Lower interest rates can also lead to greater business confidence as they anticipate greater consumer spending. This further incentivises them to increase investment as they can expect to reach closer to full capacity.

Trade

Lower interest rates mean that there is a lower reward for saving. This causes hot money to flow out of the UK as people want to take advantage of higher returns on their savings. This causes the pound to depreciate. This causes exports to increase and imports to decrease.