Learning, Inflation Cycles, and Depression
This paper constructs a model that describes inflation cycles and prolonged depression as generated by the learning behavior of households who face a random liquidity shock in which money is needed. Households update the subjective probability of the shock based on the observation and change their liquidity preference accordingly. In this setting, we first derive a stationary cycles under perfect price adjustment, which is characterized by periods of gradual inflation and sudden sporadic falls of the price level. When the nominal stickiness is introduced, the liquidity shock is followed by a period of depression in which unemployment exists and deflation occurs gradually. Depression is deep and prolonged when the economy has experienced a long period of boom before encountering a liquidity shock.
|Date of creation:||May 2006|
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