What is deflation?
In one line: Deflation is a broad fall in the general level of prices across an economy, the opposite of inflation, usually lasting months or years.
A simple example
Say a basket of everyday goods costs $100 this year. With 2% deflation, the same basket costs $98 next year. With 2% Inflation, it would cost $102.
Cheaper prices sound great. One cheap TV is good news. But when prices fall across the whole economy, for a long time, problems start.
Why it can hurt
- People wait to buy. If things will be cheaper next month, why buy now? Spending slows.
- Companies earn less. With lower prices and fewer sales, they cut costs, and sometimes jobs.
- Debts feel heavier. Your loan stays the same size, but prices and often wages fall. A $10,000 debt takes a bigger share of your pay to repay.
That loop can feed on itself. Prices fall, spending drops, jobs go, prices fall more.
The Great Depression in the 1930s saw sharp falls in US prices. Japan had long stretches of mild falling prices from the late 1990s on.
Why central banks fight it
This is a big reason the Fed aims for about 2% inflation, not zero. A little inflation gives room to cut rates when the economy weakens.
When prices fall, a Central bank can cut rates toward zero and use tools like Quantitative easing to push money into the economy.
A common mistake
Mixing up deflation and disinflation. Disinflation means prices are still rising, just more slowly. Inflation going from 5% to 3% is disinflation. Deflation means prices are actually falling: inflation below 0%.
When you read a CPI report, check the sign. A smaller positive number is disinflation, not deflation.
Questions
Is deflation good or bad?
Falling prices on a few items can be fine. Broad, lasting deflation is usually bad, because it can slow spending and make debts harder to repay.
What causes deflation?
Weak demand, a credit squeeze, falling asset prices, or a big jump in supply. Often several at once.
Has the US had deflation recently?
Not for a sustained period in recent decades. Prices fell briefly in some months, such as during the 2009 recession.
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