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Title: The Effects of Banning Advertising on Demand, Supply and Welfare: Structural Estimation on a Junk Food Market

Author(s): Pierre Dubois, Rachel Griffith and Martin O'Connell

Publication Date: April 2014

Keyword(s): advertising, demand estimation, dynamic oligopoly and welfare

Programme Area(s): Industrial Organization

Abstract: Restricting advertising is one way governments seek to reduce consumption of potentially harmful goods. There have been increasing calls to apply a similar policy to the junk food market. The effect will depend on how brand advertising influences consumer demand, and on the strategic pricing response of oligopolistic firms. We develop a model of consumer demand and dynamic oligopoly supply in which multi-product firms compete in prices and advertising budgets. We model the impact of advertising on demand in a flexible way, that allows for the possibility that advertising is predatory or cooperative, and we consider how market equilibria would be impacted by an advertising ban. In our application we apply the model to the potato chip market using transaction level data. The implications of an advertising ban for consumer welfare depend on the view one takes about advertising. In the potato chip market advertising has little informational content. The advertising may be a characteristic valued by consumers, or it may act to distort decision-making. We quantify the welfare impacts of an advertising ban under alternative views of advertising, and show that welfare conclusions depend on which view of advertising the policymaker adopts.

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Bibliographic Reference

Dubois, P, Griffith, R and O'Connell, M. 2014. 'The Effects of Banning Advertising on Demand, Supply and Welfare: Structural Estimation on a Junk Food Market'. London, Centre for Economic Policy Research. https://cepr.org/active/publications/discussion_papers/dp.php?dpno=9942