On the Desirability of Campaign Contribution Limits

This paper argues that limits on campaign contributions may well be Pareto improving even under the most optimistic assumptions concerning the role of campaign advertising and the rationality of voters. The argument assumes that candidates use campaign contributions to convey truthful information to voters about their qualifications for office and that voters update their beliefs rationally on the basis of the information they have seen. It also assumes that campaign contributions are provided by interest groups and that candidates can offer to provide policy favors for their interest groups to attract higher contributions. The argument is developed in the context of a novel model of political competition with campaign contributions and informative advertising.