A striking fact about pricing is the prevalence of \sales": large temporary price cuts followedby prices returning exactly to their former levels. This paper builds a macroeconomic modelwith a rationale for sales based on firms facing customers with different price sensitivities.Even if firms...

In order to understand inefficient institutions, one needs to understand what mightcause the breakdown of a political version of the Coase Theorem. This paper considersan environment populated by ex-ante identical agents and develops a model of powerand distribution where institutions (the...