DEFINITION of 'Deflation'

A general decline in prices, often caused by a reduction in the supply of money or credit. Deflation can be caused also by a decrease in government, personal or investment spending. The opposite of inflation, deflation has the side effect of increased unemployment since there is a lower level of demand in the economy, which can lead to an economic depression. Central banks attempt to stop severe deflation, along with severe inflation, in an attempt to keep the excessive drop in prices to a minimum.

The decline in prices of assets, is often known as Asset Deflation.


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Declining prices, if they persist, generally create a vicious spiral of negatives such as falling profits, closing factories, shrinking employment and incomes, and increasing defaults on loans by companies and individuals. To counter deflation, the Federal Reserve (the Fed) can use monetary policy to increase the money supply and deliberately induce rising prices, causing inflation. Rising prices provide an essential lubricant for any sustained recovery because businesses increase profits and take some of the depressive pressures off wages and debtors of every kind.

Deflationary periods can be both short or long, relatively speaking. Japan, for example, had a period of deflation lasting decades starting in the early 1990's. The Japanese government lowered interest rates to try and stimulate inflation, to no avail. Zero interest rate policy was ended in July of 2006. (For more see, Why is Deflation a Central Bank's Worst Nightmare?)

  1. Monetary Policy

    Monetary policy is the actions of a central bank, currency board ...
  2. Inflation

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  3. Federal Reserve Bank

    The central bank of the United States and the most powerful financial ...
  4. Biflation

    The simultaneous existence of inflation and deflation in an economy. ...
  5. Hyperdeflation

    An extremely large and relatively quick level of deflation in ...
  6. Hyperinflation

    Extremely rapid or out of control inflation. There is no precise ...
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