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The B.E. Journal of Economic Analysis & Policy

Editor-in-Chief: Jürges, Hendrik / Ludwig, Sandra

Ed. by Auriol , Emmanuelle / Brunner, Johann / Fleck, Robert / Friebel, Guido / Requate, Till / Tsui, Kevin / Wichardt, Philipp / Zulehner, Christine

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Advertising Competition in Retail Markets

Kyle Bagwell1 / Gea M Lee2

1Stanford University,

2Singapore Management University,

Citation Information: The B.E. Journal of Economic Analysis & Policy. Volume 10, Issue 1, ISSN (Online) 1935-1682, DOI: 10.2202/1935-1682.2038, August 2010

Publication History:
Published Online:
2010-08-03

Abstract

We consider non-price advertising by retail firms that are privately informed as to their respective production costs. We construct an advertising equilibrium in which informed consumers use an advertising search rule whereby they buy from the highest-advertising firm. Consumers are rational in using the advertising search rule since the lowest-cost firm advertises the most and also selects the lowest price. Even though the advertising equilibrium facilitates productive efficiency, we establish conditions under which firms enjoy higher expected profit when advertising is banned. Consumer welfare falls in this case, however. Under free entry, social surplus is higher when advertising is allowed. In addition, we consider a benchmark model of price competition; we provide comparative-statics results with respect to the number of informed consumers, the number of firms and the distribution of costs; and we consider the possibility of sequential search.

Keywords: advertising; regulation; private information; retail markets

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