Guimarães, Bernardo; Sheedy, Kevin D. - C.E.P.R. Discussion Papers - 2008
A striking fact about prices is the prevalence of "sales": large temporary price cuts followed by a return exactly to … the former price. This paper builds a macroeconomic model with a rationale for sales based on firms facing consumers with … different price sensitivities. Even if firms can vary sales without cost, monetary policy has large real effects owing to sales …