The economic climate on businesses: Interest rates:

The idea

Interest rates are the cost of borrowing and the return on saving, usually expressed as a percentage per year. They affect businesses through borrowing costs, disposable income, consumer spending, investment and exchange rates. For example, if interest rates rise from 2% to 5%, a business with a £100,000 variable-rate loan sees annual interest rise from £2,000 to £5,000, reducing profit. Higher rates also increase mortgage payments, leaving households with less disposable income, so demand for non-essential goods may fall. Conversely, savers may benefit, and a stronger currency can make exports more expensive. The skill is to trace these effects through to business costs, revenues and decisions, and to evaluate how far the impact depends on factors such as existing debt levels and the nature of the product.

What earns the marks

• Defines interest rates as the percentage cost of borrowing or return on saving over a period, usually a year.
• Explains the effect of a rise or fall in interest rates on business borrowing costs and monthly repayments.
• Analyses the effect on consumer disposable income and demand for goods and services, distinguishing essential from luxury products.
• Explains the effect on business investment decisions, such as whether to fund expansion through loans or retained profit.
• Applies interest rate changes to a named business context, calculating or estimating the change in interest cost on a given loan.
• Evaluates how the impact depends on factors such as the proportion of variable-rate debt, cash reserves, export exposure and price elasticity of demand.

Common mistakes and how to put them right

• Assuming all businesses are equally affected.

  Put it right: Explain that impact depends on debt levels, whether loans are fixed or variable, and customer sensitivity to price.

• Confusing the effect on borrowers with the effect on savers.

  Put it right: State that higher rates increase borrowing costs but can increase saving returns and reduce spending.

• Ignoring the link to exchange rates.

  Put it right: Explain that higher interest rates may strengthen the currency, making exports less price-competitive and imports cheaper.

Exam tips

• Use a numerical example with a specific loan amount and interest rate change to show the effect on annual interest cost.
• Chain the effect from interest rates to disposable income to demand to revenue and profit, keeping each link explicit.
• For evaluation, state a judgement about the likely overall impact and support it with the most important contextual factor.