We examine heterogeneity in price stickiness using a large, original, setof individual price data collected at the retail level for the computationof the French CPI. For that purpose, we estimate at a very high level ofdisaggregation competing-risks duration models that distinguish betweenprice...

This paper considers the semiparametric identification of endogenousand exogenous peer effects in the linear-in-means model. We showthat this model is generically identified when at least three differentsizes of peer groups are observed in the sample at hand. While unnecessaryin general,...

In this paper we measure the effect of entering preelementary school at age 2 rather than 3 in France. Our identification strategy relies on ratios between the number of young children and the capacity of preelementary schools observed at the very local level. This information allows us to solve...