How governments make trade-offs between objectives

Governments pursue several macroeconomic objectives, but achieving one can sometimes hinder progress on others. This requires prioritising certain goals and accepting compromises in the short term.

The main macroeconomic objectives

• Strong economic growth
• Reducing unemployment
• Keeping inflation low
• Maintaining an equilibrium in the balance of payments

Additional macroeconomic objectives

• A more equal distribution of income and wealth
• Protecting the environment
• Maintaining economic stability
• Improving productivity and international competitiveness

Reasons for conflicts and trade-offs

Conflicts arise because policies aimed at one objective may negatively impact another. In the short run, governments prioritise the most pressing issues and make trade-offs, accepting adverse effects on less urgent goals.

For instance, during a severe recession with high unemployment, governments might implement policies to boost employment quickly, even if this leads to higher inflation, as restoring jobs takes precedence.

Conflicts caused by changes in aggregate demand

Shifts in aggregate demand can create tensions between macroeconomic objectives, particularly in the short run. However, shifts in aggregate supply may allow multiple objectives to be achieved simultaneously.

Effects of a rightward shift in the aggregate demand curve

A rightward shift in the aggregate demand (AD) curve, from AD to AD₁, occurs due to increases in components such as consumption (C), investment (I), government spending (G), or net exports (X - M).

This shift leads to positive effects:

• An increase in real national output from Y to Y₁, promoting economic growth.
• A reduction in unemployment, as higher output creates derived demand for labour.

However, it also causes negative effects:

• A rise in the price level from P to P₁, contributing to inflation.
• Reduced international competitiveness due to higher prices, which decreases exports, increases imports, and worsens the current account balance of payments.

In this scenario, only two main objectives (growth and lower unemployment) are supported, while inflation and balance of payments suffer.

Effects of a rightward shift in the long-run aggregate supply curve

A rightward shift in the long-run aggregate supply (LRAS) curve, from LRAS to LRAS₁, enables all four main objectives to be met at once.

This shift results in:

• Higher output from Y to Y₁, supporting economic growth and reducing unemployment.
• A fall in the price level from P to P₁, helping to control inflation.
• Improved competitiveness, boosting exports, reducing imports, and enhancing the balance of payments.

Implications for government policies

Demand-side policies, which focus on shifting AD, often lead to conflicts between objectives. In contrast, supply-side policies, which target shifts in LRAS or short-run aggregate supply (SRAS), are more effective for achieving multiple objectives in the long run without trade-offs.

Main causes of conflict between macroeconomic objectives

Specific pairs of objectives frequently conflict, making it challenging for governments to pursue them simultaneously.

Conflict between inflation and unemployment

Reducing unemployment can drive up inflation through several mechanisms:

• As the economy nears full capacity, fewer workers are available, increasing demand for labour (especially skilled workers) and pushing up wages. Producers may pass these costs to consumers, causing cost-push inflation.
• Low unemployment boosts consumer confidence and spending, leading to demand-pull inflation as prices rise.

Thus, efforts to lower unemployment often make it harder to maintain low inflation.

Conflict between inflation and equilibrium in the balance of payments

These objectives can align or clash depending on the context.

When they align:

• Low inflation means prices rise slowly compared to other countries, making exports cheaper and more competitive while reducing imports. This improves a balance of payments surplus or reduces a deficit.

When they conflict:

• Maintaining low inflation often involves high interest rates, which attract foreign investment and strengthen the currency. This makes exports more expensive and imports cheaper, decreasing exports, increasing imports, and worsening a surplus or deficit.

Conflict between economic growth and inflation

Rapid economic growth can fuel inflation, while controlling inflation may limit growth:

• High growth increases demand, pushing up prices and exceeding the desired low inflation rate.
• To curb inflation, governments might raise interest rates to reduce spending and encourage saving, which restricts economic growth.

Conflicts involving economic growth and other objectives

Economic growth often creates tensions with environmental protection and wealth equality, requiring governments to balance progress with sustainability and fairness.

Conflict between economic growth and environmental protection

Growth can harm the environment in various ways:

• Increased production from new factories raises air and water pollution and generates more waste.
• Greater use of natural resources, especially non-renewable ones, depletes supplies.
• Construction of factories, housing, or infrastructure can damage ecosystems, potentially leading to species extinction.

Conflict between economic growth and a reduction in wealth inequality

Growth can widen inequality, as benefits are not evenly distributed. Demand rises for highly skilled workers (e.g., in technology sectors), while low-skilled roles (e.g., manual tasks replaced by machines) decline, increasing income gaps.

Governments can use growth-generated tax revenue to reduce inequality through:

• Higher welfare payments.
• Progressive taxes, where higher earners pay a greater proportion.
• Raising the minimum wage alongside average wage increases.

However, these measures may hinder future growth:

• High taxes can discourage individuals and businesses from expanding.
• Generous welfare might reduce incentives to work.

Supply-side policies, such as training to reduce labour immobility, can promote growth while lowering unemployment and welfare costs, helping to address inequality.