Inflation and the Consumer Prices Index

Inflation is a sustained rise in the general price level. The UK measures it with the Consumer Prices Index (CPI), which tracks the price of a weighted basket of goods and services bought by a typical household.

Effects on business:

• Costs rise — raw materials, energy and wages. If the firm cannot pass this on (elastic demand), the margin is squeezed.
• Real incomes fall if pay rises more slowly than prices, cutting demand — hardest for income-elastic luxuries.
• Menu costs and uncertainty — repricing is costly and long-term planning and investment become riskier.
• The Bank of England typically responds by raising interest rates, which then raises borrowing costs.

Nuance: mild inflation is not all bad. It erodes the real value of existing debt, and firms with strong brands and inelastic demand can raise prices ahead of costs and widen margins.

Exchange rates: SPICED

An appreciation means the pound buys more foreign currency. UK exports become more expensive abroad (volumes fall), while imported components and finished goods become cheaper in sterling (costs fall).

A depreciation does the reverse: exports become more price competitive abroad, but imported inputs cost more — which is itself inflationary.

Your turn — an appreciation

Your turn — importing

Who wins from a weak pound?

Interest rates, taxation and the business cycle

Interest rates (set via the Bank of England base rate) affect business three ways: the cost of borrowing (loans, overdrafts, mortgages), consumer demand (credit-financed purchases — cars, housing, big-ticket goods — fall when rates rise, and saving becomes more attractive), and investment appraisal (a higher discount rate reduces the NPV of a project, so fewer projects clear the hurdle).

Taxation and government spending: higher corporation tax cuts post-tax profit and retained earnings; higher income tax or VAT cuts disposable income and demand; higher National Insurance raises the cost of employing staff. Government spending on infrastructure, health or defence is direct demand for the firms that supply it.

The business cycle: boom → downturn → recession → recovery. In a boom, demand and prices rise, capacity is stretched and skills shortages appear. In a recession, demand falls (sharply for luxuries, positive YED), firms cut costs and prices, and cash and liquidity become the priority. Inferior goods and discount retailers can grow.

Economic uncertainty is itself a cost: when firms cannot predict rates, demand or currency, they delay investment and recruitment, hold cash and avoid long-term commitments — which slows the economy further.

Your turn — an interest rate rise

Exchange rates and competitiveness

Tap a change, then tap the effect it has on a UK business.

Interest rates and investment

The law and the business

• Consumer protection (Consumer Rights Act): goods must be of satisfactory quality, fit for purpose and as described. It raises the cost of quality control and returns, but builds trust in the market as a whole.
• Employee protection: the National Minimum and Living Wage, working time limits, contracts, anti-discrimination and unfair-dismissal law. It raises labour costs, but can cut turnover and raise motivation and productivity.
• Environmental protection: emissions limits, waste and packaging rules, carbon pricing. Compliance is costly, but it can drive innovation and improve brand reputation.
• Competition policy (the Competition and Markets Authority): blocks anti-competitive mergers, cartels and abuse of a dominant position (including predatory pricing).
• Health and safety: risk assessments, training and equipment. Costly, but the alternative — accidents, prosecutions and reputational damage — is far more expensive.

Evaluation: legislation is a cost, but it applies to all firms in the market, so it does not necessarily damage competitiveness. It can even benefit large firms, whose compliance costs are spread over a bigger output — a barrier to entry for small rivals.

Legislation and competitiveness

Competition and market size

The number and size of competitors shapes almost every decision a firm makes:

• Many small rivals selling similar products → demand is highly price elastic, prices are driven towards cost and margins are thin. Success depends on cost efficiency or genuine differentiation.
• Few large rivals (an oligopoly) → firms are interdependent; each watches the others. Price competition is often avoided in favour of branding, quality and loyalty schemes, because a price war destroys everyone's margins.
• A dominant firm → high barriers to entry, pricing power, and the attention of the competition authorities.

Market size matters too: a growing market allows a firm to expand without taking share from rivals, so competition is less bitter. In a static or shrinking market, growth can only come at a rival's expense — which is when price wars start.

Match the change to its effect

Tap an economic change on the left, then its most likely effect on business.

Recession strategy

Uncertainty versus risk

The big ideas to know

You have covered economic influences, legislation and the competitive environment for Theme 2.5. Press Finish to see your score.