SingaporeEconomicsSyllabus dot point

Why can't a government achieve all its aims at once, and how does it choose between policies?

Evaluate macroeconomic policies, including the conflicts between aims and how to choose between policies

A clear O-Level answer on evaluating macroeconomic policies. The conflicts between the four aims, the trade-offs such as growth versus inflation, how to weigh the policies, and how to write a balanced evaluation.

Generated by Claude Opus 4.88 min answerUpdated 2026-06-06

Reviewed by: AI editorial process; not yet individually human-reviewed

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What this dot point is asking
The answer
Examples in context
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What this dot point is asking

The syllabus wants you to evaluate macroeconomic policies, explaining the conflicts between the government's aims and how to choose between policies. The big idea is that the four aims cannot always be achieved at once, so a government faces trade-offs, and the best policy depends on the cause of the problem, the time available, the costs and the type of economy.

The answer

The four aims can conflict

A government has four main aims: economic growth, low unemployment, low inflation, and a healthy balance of trade. The trouble is that pursuing one can harm another:

Low unemployment versus low inflation. Boosting aggregate demand to cut unemployment can, near full capacity, cause demand-pull inflation. Cutting demand to control inflation can raise unemployment.
Growth versus inflation. Rapid growth driven by demand can overheat the economy and push up prices.
Growth versus the balance of trade. Faster growth raises incomes, so people buy more imports, which can worsen the balance of trade.
Growth versus the environment. Higher output can bring more pollution, a cost not in the aims but important for wellbeing.

These conflicts mean a government usually cannot hit every aim at once and must choose which to prioritise.

How to choose between policies

When deciding which policy to use, a government weighs several factors:

The cause of the problem. A demand-side problem (cyclical unemployment) suits fiscal or monetary policy that changes aggregate demand. A supply-side problem (structural unemployment, slow long-term growth) suits supply-side policy.
The time available. Fiscal and monetary policy work fairly quickly, suiting urgent problems; supply-side policies work slowly, suiting long-term goals.
The cost and side effects. Expansionary fiscal policy raises debt; demand boosts near capacity risk inflation; supply-side policies are costly upfront. Each has drawbacks.
The type of economy. For a small, open economy such as Singapore, exchange rate policy is more effective than interest rates, and trade matters greatly.

Why policies are often combined

Because each policy has strengths and weaknesses, governments often combine them. For example, supply-side policies can raise capacity so that demand-side policies can boost growth without causing as much inflation. A good evaluation recognises that the best approach is usually a mix, not a single tool.

Worked example

An economy is growing fast, unemployment is very low, but inflation is rising and the balance of trade is worsening. Show how to evaluate the policy choice.

Step 1: Identify the conflict

Strong growth and low unemployment are good, but they have come with rising inflation and a worsening balance of trade. The aims are in conflict: the boom that delivers jobs is also fuelling inflation and sucking in imports.

Step 2: Choose a policy direction

To control inflation, the government could use contractionary policy to cool aggregate demand, for example by raising taxes or cutting spending (fiscal), or by tightening monetary policy. This eases inflation and may improve the balance of trade as import spending falls.

Step 3: Weigh the side effects

But cooling demand risks raising unemployment and slowing the growth the economy has enjoyed. So the government must judge how much inflation it is willing to accept against how much growth and employment it is willing to sacrifice.

Step 4: Conclude with balance

A balanced answer notes the trade-off: there is no costless option. The government might tighten policy moderately to curb inflation while protecting jobs, and use supply-side policies to raise capacity so that future growth causes less inflation. The best choice depends on which aim it prioritises and the state of the economy.

Examples in context

Example 1. Cooling an overheating economy. When an economy booms and inflation rises, a government may tighten policy to cool demand, accepting slower growth and the risk of higher unemployment as the price of lower inflation. This illustrates the trade-off between the inflation aim and the growth and employment aims.

Example 2. Singapore combining tools. Singapore manages inflation mainly through its exchange rate while using fiscal policy and heavy investment in skills and infrastructure (supply-side) to support long-term growth. Combining demand-side and supply-side tools lets it pursue several aims at once and shows why a policy mix is often best.

Try this

Cue. Explain one conflict between two macroeconomic aims. For example, boosting aggregate demand to cut unemployment can, near full capacity, cause demand-pull inflation, so low unemployment and low inflation can conflict.
Cue. State two factors a government should consider when choosing a macroeconomic policy. Any two of: the cause of the problem (demand-side or supply-side), the time available, the cost and side effects, and the type of economy.
Cue. Explain why governments often combine different macroeconomic policies. Because each policy has strengths and weaknesses, combining them can offset drawbacks, for example using supply-side policy to raise capacity so demand-side policy can boost growth with less inflation.

Exam-style practice questions

Practice questions written in the style of SEAB exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.

Original6 marksExplain why a government may face a conflict between achieving low unemployment and low inflation at the same time.

Show worked answer →

A 6 mark question rewards the conflict explained through aggregate demand.

Pursuing low unemployment: To reduce unemployment, a government may use expansionary policy to raise aggregate demand. Firms then produce more and hire more workers, so unemployment falls.
The conflict with inflation: But if aggregate demand rises when the economy is near full capacity, firms cannot easily produce more and raise prices instead, causing demand-pull inflation. So the policy that cuts unemployment can worsen inflation.
The reverse: Likewise, cutting aggregate demand to reduce inflation can slow output and raise unemployment.
Conclusion: There is often a trade-off: reducing unemployment may raise inflation, and reducing inflation may raise unemployment, so a government cannot always achieve both at once.

Markers reward the demand-side reasoning, the point that boosting demand near capacity causes inflation, and the clear statement of the trade-off between the two aims.

Original8 marksDiscuss the factors a government should consider when choosing between fiscal, monetary and supply-side policies to manage its economy.

Show worked answer →

A 8 mark discuss question rewards several factors and a balanced judgement.

The cause of the problem: A demand-side problem (such as cyclical unemployment) suits fiscal or monetary policy that changes aggregate demand. A supply-side problem (such as structural unemployment or slow long-term growth) suits supply-side policy.
Time available: Fiscal and monetary policy work relatively quickly, so they suit urgent problems. Supply-side policies work slowly, so they suit long-term goals.
Cost and side effects: Expansionary fiscal policy raises debt; boosting demand near capacity risks inflation; supply-side policies are costly upfront. Each has drawbacks to weigh.
The type of economy: For a small, open economy like Singapore, exchange rate policy is more effective than interest rates, and trade matters greatly.
Judgement: No single policy is best; the right choice depends on the cause, the time available, the costs, and the type of economy. Governments often combine policies.

Markers reward several relevant factors (cause, time, cost or side effects, type of economy) and a balanced conclusion that the best choice depends on circumstances and often involves a mix.