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Review of Economic Studies 2026

Competitive Advertising and Pricing

Ilwoo Hwang1; Kyungmin Kim2; Raphael Boleslavsky3

1 Department of Economics, Seoul National University, Republic of Korea · 2 Department of Economics Emory University · 3 Kelley School of Business, Indiana University

Abstract

We consider an oligopoly model in which each firm chooses not only its price but also its advertising strategy regarding how much, and what, product information to provide. To highlight firms’ strategic incentives, we impose no structural restrictions on feasible advertising content, so that each firm can disclose or conceal any information. We obtain a comprehensive characterization of the equilibrium advertising strategy and provide some sufficient conditions for the existence of symmetric pure-price equilibria. We show that intense competition induces firms to provide accurate product information; firms usually obfuscate consumers’ relatively low or high values; and requiring firms to provide more product information can reduce social surplus and also be harmful to consumers.

DOI
10.1093/restud/rdag062
Language
en
Sources
openalex crossref

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