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Is inflation a good or bad thing? Why do governments want some inflation?
Inflation is an increase in the money supply.  Increases in consumer prices follow from inflation.  It's not the same as inflation. Some inflation is necessary for a growing economy.  If your gross national product is only $1,000, then you can get away with having less money than if your gross national product is $1 trillion. Inflation beyond this, though, is used to allow governments to live beyond their means.  If there is more money chasing the same amount of goods, prices will rise.  There is truth in what azcoastal says about this kind of inflation.  It's theft. Governments like inflation because it allows them to pay off their debts with cheaper money.