financial and retail gasoline, governments and consumer protection agencies call for compulsory price reporting. Consumers could … then more easily compare the firms' offers. We showthat for a given level of price comparison, mandatory price reporting … of price comparison in equilibrium. This effect may dominate so that the regulation lead to higher expected market prices. …

financial and retail gasoline markets, governments and consumer protection agencies call for a compulsory price reporting …. Consumers should then more easily compare the firms' offers. We show that for a given level of price comparison, a mandatory … price reporting indeed widely benefits consumers. The regulation, however, feeds back into firms' strategies, resulting in …

our model’s estimates, we quantify both sources of bias: they lead to overestimation of price elasticity by a factor of …

convergent to zero as the number of firms increases. As a result, when the econometrician has price data from only one market … propose to consider a richer framework where the researcher has price data from many markets with the same underlying search …