Possible conflicts between macroeconomic aims: full employment and stable prices

Full employment vs. stable prices

Imagine the economy as a big factory. Full employment means every worker who wants a job has one – the factory is running at its best. Stable prices means the cost of goods and services doesn’t rise too fast – the factory’s price tags stay steady. The government tries to keep the factory running smoothly, but sometimes the two goals can clash.

Why the conflict?

• When the government spends money or cuts taxes to create jobs, it can increase demand for goods. If supply can’t keep up, prices rise – that’s inflation.
• When the government tightens policy (spends less, raises taxes) to curb inflation, it can reduce demand and push workers out of the factory – unemployment rises.

Key tools the government uses

The Phillips Curve – A simple picture

The Phillips Curve shows a trade‑off between unemployment (U) and inflation (π). In the short run, moving left on the curve (lower unemployment) often means higher inflation, and vice versa.

📈 Example: If the government boosts spending, unemployment may drop from 5 % to 3 %, but inflation could rise from 2 % to 4 %.

Analogy: The Economy as a Thermostat

Think of the economy like a room with a thermostat. The temperature is the price level. The heater is government spending; the air conditioner is tax cuts or monetary easing. If you turn the heater on too high, the room gets too hot (inflation). If you turn the air conditioner on too much, the room gets too cold (unemployment). The goal is to keep the room at a comfortable temperature.

Key Formulae

Inflation rate: $\displaystyle \pi = \frac{P_t - P_{t-1}}{P_{t-1}} \times 100\%$

Real GDP growth: $\displaystyle \text{Growth} = \frac{Y_t - Y_{t-1}}{Y_{t-1}} \times 100\%$