[2.1.3] Policy trade-offs
Conflicts Between Macroeconomic Objectives
Governments pursue multiple macroeconomic objectives simultaneously — economic growth, low unemployment, low inflation, a balanced current account and environmental protection. In an ideal world these would all be achieved together. In practice, trade-offs arise: policies that advance one objective often make another harder to achieve. Understanding these conflicts is essential for evaluating government policy choices.
Key Policy Conflicts
Stimulating economic growth through expansionary fiscal or monetary policy increases aggregate demand. When the economy approaches full capacity, excess demand bids up prices — generating demand-pull inflation. The policy that delivers growth (higher spending, lower taxes, lower interest rates) simultaneously creates inflationary pressure. Governments and central banks must therefore choose an appropriate balance — allowing enough growth to keep unemployment low whilst preventing the economy from "overheating."
Economic growth has historically been associated with greater industrial activity, energy consumption, resource extraction and transport — all of which generate environmental damage. Rising incomes increase consumer demand for goods with large carbon footprints (cars, flights, meat-heavy diets). Faster GDP growth typically means more pollution, more land use and faster depletion of natural resources. Governments face the challenge of promoting growth whilst simultaneously meeting climate targets and protecting natural environments — a tension that requires green investment and carbon pricing rather than conventional demand stimulus alone.
The Phillips Curve relationship suggests an inverse relationship between unemployment and inflation in the short run: policies that reduce unemployment (by stimulating demand) tend to increase inflation as workers gain bargaining power and firms raise prices; policies that reduce inflation (contractionary monetary policy) tend to increase unemployment as demand and output fall. A government targeting both low unemployment and low inflation simultaneously must find a path between them — tolerating moderate levels of each. In the long run, this relationship breaks down: only supply-side improvements can sustainably reduce both.
Strong economic growth typically increases consumer incomes, raising demand for imports (high income elasticity goods). If domestic productive capacity cannot keep pace, imports rise faster than exports, worsening the current account. Furthermore, rapid domestic growth may cause inflation that erodes export competitiveness. A booming economy often runs a larger current account deficit — requiring capital inflows to finance it. The government faces a difficult choice: cool the economy to protect the current account (at the cost of growth) or accept the deficit as a temporary consequence of strong growth.
Key Takeaways
- Growth vs inflation: faster growth stimulates demand-pull inflation — central banks must balance supporting growth with controlling prices.
- Growth vs environment: higher output tends to increase energy use and pollution — green policy is needed to decouple growth from environmental damage.
- Unemployment vs inflation: the short-run Phillips Curve trade-off — reducing unemployment raises inflation; reducing inflation increases unemployment.
- Growth vs current account: fast growth sucks in imports and can cause inflation that worsens export competitiveness, widening the current account deficit.