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Benefits and costs of economic growth
Edexcel IAL Economics · WEC12 Macroeconomic performance and policy
Growth raises incomes and public revenue, but it can also harm the environment, widen inequality and cause inflation. Evaluation means weighing these.
Benefits
- Higher living standards: more real income per head to spend on goods, services, health and education.
- Lower unemployment: firms need more workers (labour is a derived demand).
- Higher profits for firms, which fund dividends and further investment.
- Higher tax revenues without raising tax rates, and less spending on benefits, so the budget deficit falls.
- Improved public services: the extra revenue can fund schools, hospitals and infrastructure.
Costs
- Opportunity cost: investing for future growth means sacrificing consumption now.
- Environmental costs: pollution, carbon emissions, resource depletion and loss of habitats; these are negative externalities not counted in GDP.
- Balance of trade deficits: rising incomes suck in imports.
- Increased inequality: the gains may go mainly to owners of capital and skilled workers or to certain regions.
- Inflation: if AD grows faster than capacity, demand-pull inflation results.
Evaluating
Ask: what kind of growth is it (demand-led or supply-led, sustainable or not)? How fast? Who benefits? Is it short or long run? Green technologies may allow growth with lower emissions; government policy (taxes, transfers, regulation) can reduce inequality and pollution.
Worked example
Explain how faster growth could improve a government's budget position.
- Higher incomes and spending raise revenue from income tax, corporation tax and VAT.
- Lower unemployment reduces spending on benefits.
- So the budget deficit narrows, or a surplus emerges, without changing tax rates.
Answer: Tax revenue up, welfare spending down, deficit smaller.
Check yourself
- Why might rapid growth reduce wellbeing even though real GDP rises?
- It always lowers real incomes
- It increases unemployment
- It can increase pollution and environmental damage
- It reduces tax revenue
Show answer
It can increase pollution and environmental damage. Negative externalities such as pollution reduce quality of life and are not deducted from GDP.
- Rapid consumer-led growth is most likely to cause
- a worsening of the trade balance as imports rise
- a fall in imports
- a current account surplus
- deflation
Show answer
a worsening of the trade balance as imports rise. Higher incomes raise spending on imports.
- Which is the opportunity cost of high investment for future growth?
- Lower future output
- Higher unemployment in the future
- Lower consumption today
- A smaller capital stock
Show answer
Lower consumption today. Resources used to make capital goods cannot make consumer goods now.
- Why might economic growth increase income inequality?
- Growth always lowers all wages
- The gains may go mainly to owners of capital and highly skilled workers
- Growth reduces profits
- Growth increases benefits for the poor
Show answer
The gains may go mainly to owners of capital and highly skilled workers. Growth does not guarantee an even spread of gains.
- How does economic growth tend to affect unemployment?
- It increases unemployment because prices rise
- It has no effect on unemployment
- It raises structural unemployment only
- It reduces unemployment because firms need more workers to produce more output
Show answer
It reduces unemployment because firms need more workers to produce more output. Labour is a derived demand.
- Tax revenue is 30% of GDP. GDP grows from $400 bn to $420 bn. Find the rise in tax revenue in $ bn, with the tax share unchanged.
Show answer
$6 bn. 0.30 x 20 = $6 bn.
- Explain how rapid economic growth could lead to inflation.
Show answer
If AD grows faster than productive capacity, the economy approaches full capacity, shortages of labour and resources appear and firms raise prices, causing demand-pull inflation.. Demand outruns capacity, so prices rise.
Sources
Last updated 8 November 2026. Spotted a mistake? Tell us.