Economics – Government and the macroeconomy - Monetary policy | e-Consult

A decrease in the Bank Rate (the official interest rate set by the BoE) aims to stimulate the UK economy. It achieves this by making borrowing cheaper for banks. This has a ripple effect throughout the economy:

• Increased Borrowing by Consumers: Lower interest rates make mortgages, personal loans, and credit card borrowing more affordable. This encourages consumers to spend more.
• Increased Investment by Businesses: Businesses find it cheaper to borrow money for expansion, new equipment, and research and development. This boosts investment.
• Increased Aggregate Demand (AD): The combined effect of increased consumer spending and business investment leads to an increase in aggregate demand. This shifts the AD curve to the right.
• Impact on Aggregate Supply (AS): While the immediate impact is primarily on AD, sustained lower interest rates can eventually lead to increased AS. This happens as businesses invest and expand, increasing productive capacity. However, this effect is generally slower to materialize.
• Inflationary Pressure: An increase in AD can lead to demand-pull inflation if the economy is operating near full capacity. This is because there is more money chasing the same amount of goods and services.
• Exchange Rate Effects: Lower interest rates can make the pound less attractive to foreign investors, leading to a depreciation of the exchange rate. A weaker pound makes UK exports cheaper and imports more expensive, potentially improving the UK's trade balance and further boosting AD.

In summary, a decrease in the Bank Rate is intended to boost economic activity by encouraging spending and investment, leading to higher AD. However, it also carries the risk of inflation.