2.1 - Economic Growth
The main macroeconomic objectives of governments
Governments pursue several key goals to manage the economy effectively, aiming to improve overall living standards and stability.
Primary macroeconomic objectives
- Economic growth - This involves boosting the economy's ability to produce more goods and services. Governments seek steady increases to raise living standards.
- Low inflation - Keeping price increases under control is essential. For instance, a target like 2% helps maintain purchasing power, with bodies such as a monetary policy committee adjusting interest rates to meet this goal.
- Reducing unemployment - Governments work towards full employment, where most people who want jobs can find them. Higher employment levels make the economy more efficient and boost total spending through increased earnings.
- Balance of payments equilibrium - This means matching earnings from exports and incoming funds with spending on imports and outgoing flows. It prevents issues from ongoing surpluses or deficits that could harm the economy.
Additional macroeconomic objectives
- Budget balance - Ensuring government income from taxes matches or exceeds spending to avoid excessive debt.
- Environmental protection - Promoting sustainable practices to safeguard natural resources.
- Income equality - Reducing gaps between rich and poor through policies like progressive taxation.
Different types of economic growth
Economic growth reflects an expansion in what an economy can produce, measured in various ways depending on the timeframe.
Short-run economic growth
Short-run growth, also called actual growth, measures changes in real gross domestic product (GDP) after removing inflation effects. It often fluctuates due to shifts in total demand or supply. On a PPF diagram, this appears as a movement towards the curve from a point inside it, without shifting the curve itself.
Long-run economic growth
Long-run growth, or potential growth, comes from enhancing the economy's overall capacity through better resources or efficiency. This might involve advanced equipment or a more skilled workforce. It is shown by a smooth upward trend in growth rates over cycles of booms and slumps. On a PPF, the entire curve shifts outwards, indicating higher productive potential.
The economic cycle and output gaps
Economies experience ups and downs in activity, known as the economic cycle (or trade/business cycle). These phases affect employment, prices, and demand, with gaps highlighting differences between current and potential output.
Phases of the economic cycle
- Boom - Rapid expansion where total demand surges, jobs increase, but prices often rise due to high activity.
- Recession - At least two quarters of falling output, leading to lower demand, higher joblessness, and declining prices.
- Recovery - A shift back to positive growth, with rising demand, fewer job losses, and increasing prices.
Types of output gaps
Output gaps measure how actual output compares to the economy's trend or potential level.
- Negative output gap (recessionary gap) - Actual output falls below potential, often in slumps, leaving resources like workers underused and putting downward pressure on prices.
- Positive output gap (inflationary gap) - Actual output exceeds potential during peaks, overusing resources, lowering unemployment but pushing prices up.
These gaps can be shown on diagrams:
- In a PPF, points inside the curve indicate a negative gap (unused capacity), while points beyond suggest a positive gap (overcapacity).
- In an aggregate supply-aggregate demand (AS-AD) model, equilibrium left of the long-run aggregate supply (LRAS) curve shows a negative gap, and right of it indicates a positive gap.
Benefits and costs of economic growth, and impacts of recession
Economic growth brings advantages but also drawbacks, while recessions create challenges that can reshape businesses and government finances.
Benefits of economic growth
- Boosts job opportunities, cutting unemployment and lifting incomes for better living standards.
- Enables firms to pay higher wages and invest in new technology or staff.
- Improves trade balances through higher exports and raises government funds from taxes, reducing the need for borrowing.
- Supports environmental efforts, like funding cleaner manufacturing methods.
Costs of economic growth
- May widen income gaps, as unskilled workers miss out on wage rises.
- Can lead to stress from heavier workloads and inflate prices if demand outpaces supply.
- Risks trade deficits from increased import buying and harms the environment through pollution or resource depletion.
Impacts of recession
- Businesses shut down, raising unemployment, especially among young people, and cutting investment for future growth.
- Governments face higher welfare costs and lower tax income, increasing borrowing and deficits.
- Some sectors, like budget stores, may thrive, while inefficient firms are forced to adapt or close.
Ways to create short-run and long-run economic growth
Growth can be stimulated in the short term by boosting demand or supply, while long-term gains focus on building capacity. Governments play a key role in both.
Creating short-run economic growth
- Increasing aggregate demand (AD) - Shifts the AD curve right through factors like reduced borrowing costs or higher benefits, amplified by spending propensities and multiplier effects.
- Increasing short-run aggregate supply (SRAS) - Shifts the SRAS curve right by lowering production expenses, such as through cheaper energy or reduced pay rates.
Creating long-run economic growth
This stems from supply-side improvements that enhance resource quality or quantity, shifting the LRAS curve right.
Key factors for long-run growth:
- Introducing new technologies or innovations.
- Investing in updated equipment to strengthen capital resources.
- Enhancing farming methods, such as using improved crop varieties.
- Boosting education and skills training for a more capable workforce.
- Expanding the labour pool via policies encouraging immigration.
Governments foster this by maintaining stable conditions that encourage investment and confidence.