Inflation/vs/Deflation
Summary
- Inflation is a rising general price level; deflation is a falling general price level. The trade-off is not a choice between two equally desirable targets: rapid or unpredictable movement in either direction can disrupt decisions, while persistent deflation can worsen downturns and make debts harder to repay.
- Modern central banks generally aim for low, stable inflation rather than a perfectly constant price level. That leaves room for relative prices to adjust while reducing the risks associated with high inflation and deflation.
The Trade-Off
Inflation
- In this trade-off, inflation means a broad rise in prices over time. Mild, stable inflation gives households and businesses a predictable planning environment and lets relative prices adjust without requiring nominal prices and wages to fall.
- When inflation is high or unpredictable, purchasing power shifts between borrowers and savers, contracts become harder to plan around, and people spend effort adjusting prices rather than producing.
Deflation
- In this trade-off, deflation means a broad and sustained fall in prices, not simply slower inflation or one item becoming cheaper.
- Falling prices can benefit buyers in the short run, but expected deflation can lead households and firms to delay spending. It also raises the real burden of debts fixed in money terms and can leave central banks with less room to reduce interest rates.
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