Economic Growth — A-Level Economics Revision

Topic has curated content entry with explanation, mistakes, and worked example. [auto-gate:promote; score=75.25]

What is Economic Growth?

Economic growth is the increase in the productive capacity of an economy over time, typically measured by the percentage change in real Gross Domestic Product (GDP). It is a key objective of government policy as it can lead to higher living standards, increased employment, and greater tax revenues. We distinguish between short-run growth, caused by an increase in aggregate demand, and long-run growth, caused by an increase in the quantity or quality of factors of production.

Board notes: A central macroeconomics topic for AQA, Edexcel, and OCR. All boards expect students to understand the distinction between short-run and long-run growth and to be able to analyse the costs and benefits. Edexcel and AQA often feature questions on the trade-offs between economic growth and other macroeconomic objectives like inflation and environmental sustainability. OCR places emphasis on the role of supply-side policies in achieving sustainable growth.

Worked example

Common mistakes

• 1Confusing economic growth with a rise in the price level. Economic growth refers to an increase in *real* GDP, which is adjusted for inflation. An increase in nominal GDP could just be due to rising prices, not an actual increase in output.
• 2Assuming that economic growth is always beneficial. While it has many benefits, rapid economic growth can also have costs, such as increased income inequality, environmental degradation (e.g., pollution, resource depletion), and potential for demand-pull inflation if the economy overheats.
• 3Mixing up the causes of short-run and long-run growth. Short-run growth is driven by increases in aggregate demand (C+I+G+X-M). Long-run growth requires a rightward shift in the Long-Run Aggregate Supply (LRAS) curve, driven by supply-side factors like investment in new technology, improvements in education and skills, or an increase in the size of the labour force.

Economic Growth exam questions

Exam-style questions for Economic Growth with mark-scheme style solutions and timing practice. Aligned to AQA, Edexcel and OCR specifications.

Frequently asked questions

• What is the difference between actual and potential economic growth?

  Actual growth is the measured increase in real GDP in a given period. Potential growth is the speed at which the economy *could* grow if it were operating at full capacity; it is determined by the growth in the labour force and productivity.

• How can a government promote long-run economic growth?

  Governments can use supply-side policies to promote long-run growth. This includes investing in education and training to improve human capital, providing tax incentives for business investment in new technology, and improving infrastructure like transport and communication networks.