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Denis Fougère

21 October 2005
This paper examines heterogeneity in price stickiness using a large, original, set of individual price data collected at the retail level for the computation of the French CPI. To that end, we estimate, at a very high level of disaggregation, competing-risks duration models that distinguish between price increases, price decreases and product replacements. The main findings are the following: i ) cross-product and cross-outlet-type heterogeneity in both the shape of the hazard function and the impact of covariates is pervasive ii) at the product-outlet type level, the baseline hazard function of a price spell is non-decreasing iii ) there is strong evidence of state dependence, especially for price increases.
JEL Code
E31 : Macroeconomics and Monetary Economics→Prices, Business Fluctuations, and Cycles→Price Level, Inflation, Deflation
C41 : Mathematical and Quantitative Methods→Econometric and Statistical Methods: Special Topics→Duration Analysis, Optimal Timing Strategies
Eurosystem inflation persistence network