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

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

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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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Journal article | Review of Economic Studies
There are growing calls to restrict advertising of junk foods. Whether such a move will improve diet quality will depend on how advertising shifts consumer demands and how firms respond. We study an important and typical junk food market – the potato chips market.
Video clip
How to tackle rising obesity? In this VoxEUvideo, Martin O’Connell referring to the crisps market discusses how restrictions on advertisement could influence consumption.
External publication
There have been calls for restrictions on junk food advertising to tackle rising rates of obesity around the world. This column examines the likely effect of a ban on potato crisp advertising. Results suggest that the total quantity of crisps sold would fall by around 15% in the presence of a ban, ...