Growth is the increase in the economy’s total output, usually measured by real GDP. Think of it as the economy’s “muscle mass” getting bigger over time.
Inflation is the rate at which the general level of prices for goods and services rises, eroding purchasing power. Picture a balloon that keeps inflating; the more it expands, the harder it is to keep up.
The Phillips Curve shows a short‑run trade‑off between unemployment and inflation. Imagine a seesaw: when unemployment is low, inflation tends to rise, and when unemployment is high, inflation tends to fall.
In the 1970s many countries faced stagflation—high inflation and low growth simultaneously. Oil price shocks pushed prices up while output stalled, breaking the usual Phillips Curve relationship.
1️⃣ Use the Phillips Curve diagram. Label axes, show the short‑run trade‑off, and note that the long‑run curve is vertical at the natural rate of unemployment.
2️⃣ Cite real examples. Mention the 1970s stagflation or the 2008 financial crisis to illustrate breakdowns.
3️⃣ Discuss policy tools. Explain how monetary policy (interest rates) and fiscal policy (government spending) influence both growth and inflation.
4️⃣ Highlight expectations. Mention the role of inflation expectations and the concept of “adaptive” vs. “rational” expectations.
5️⃣ Keep it concise. Use bullet points or short paragraphs; exams reward clarity.
| Scenario | Growth Rate (\$g\$) | Inflation Rate (\$\pi\$) | Interpretation |
|---|---|---|---|
| Strong Growth, Low Inflation | +3% | +1% | Healthy economy, room for policy easing. |
| Weak Growth, High Inflation | +0.5% | +4% | Stagflation risk; tough policy trade‑offs. |
| Strong Growth, High Inflation | +4% | +3% | Potential overheating; consider tightening. |
| Weak Growth, Low Inflation | -1% | -0.5% | Deflationary risk; expansionary policy may help. |