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This research investigates the price-setting behavior in São Paulo city. We analyze more than six millions of consumer price index quotes produced by FIPE. The main results are: (i) the average frequency of price change is 32,35% per month; (ii) the prices remain unchanged on average for 2,56 months; (iii) there is a large degree of product heterogeneity related to the behavior of price change; (iv) 40% of price changes are price decreases; (v) the magnitude of price changes is large; (vi) the frequency of price change exhibits seasonal patterns for some groups; (vii) for some groups the frequency of price change was affected by 2002 elections; (viii) the baseline hazard functions are downward-sloping with 12 month spikes for some subgroups, and (ix) the hazard of price change responds to inflation for almost 70% of the subgroups.

A rigidez nominal de preços na cidade de São Paulo: evidências baseadas em microdados do índice de preços ao consumidor da FIPE