In macroeconomic models, the level of price dispersion - which is typically approximated through its relationship with inflation - is a central determinant of welfare, the cost of business cycles, the optimal rate of inflation, and the tradeoff between inflation and output stability. While the...

To provide a more exible workhorse model of temporary price reductions or "sales", this paper presents a substantially generalized "clearinghouse" sales framework. Our framework permits multiple dimensions of firm heterogeneity, and views firms as competing directly in utility rather than...