The roles of price points and menu costs in price rigidity

Abstract

Macroeconomic models often generate nominal price rigidity via menu costs. In scanner databases, (1) price points, embodied in nine-ending prices, account for two-thirds of prices; (2) at the conclusion of sales, post-sale prices return to their pre-sale levels more than three-fourths of the time; and (3) such memory around sales is stronger if the pre-sale price was a price point. Extending a canonical menu cost model to allow for price points, I estimate an incentive to set nine-ending prices two orders of magnitude larger than the menu costs. The choice of a mechanism for price rigidity matters for aggregate dynamics.