The Optimal Rate of Inflation: An Academic Perspective
9 Pages Posted: 27 Apr 2005
Abstract
In an economy free of all imperfections, inflation should be slightly negative. Prices should keep dropping, at the real rate of interest. Any higher rate of sustained inflation (or lower deflation) would reduce the benefits from holding real money. Central banks typically aim for modest positive inflation, however.
This article explores five types of imperfection: inertia in nominal prices, the need for distorting taxes, market power for retail banks, the value of the option to cut nominal interest rates in bad times, and menu costs. It concludes that the combined effect of these imperfections is in practice likely to justify a small positive rate of inflation.
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