The Pass-through from Depreciation to Inflation: Chile 1986-2001

A microeconomic model of imperfect Cournot competition is used to derive an explicit endogenous relationship between price level and the nominal exchange rate. We obtain a markup that varies endogenously with consumer real income. Using the model, the estimated passthrough - namely the impact of devaluation on inflation - ranges between 9-11% in the short run and between 21-32% in the long run for the period 1986-2001. However, the data supports a structural change in 1991, after which the pass-through coefficient decline significantly. Moreover, contrary to conventional wisdom, we find no evidence of procyclical pass-through.