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CONTRIBUTIONS AND ELECTIONS WITH NETWORK EXTERNALITIES
Author(s) -
Meirowitz Adam,
Wiseman Alan E.
Publication year - 2005
Publication title -
economics and politics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.822
H-Index - 45
eISSN - 1468-0343
pISSN - 0954-1985
DOI - 10.1111/j.1468-0343.2005.00147.x
Subject(s) - economics , victory , incentive , externality , indeterminacy (philosophy) , competition (biology) , dimension (graph theory) , balance (ability) , microeconomics , politics , political science , law , mathematics , medicine , ecology , physics , quantum mechanics , pure mathematics , physical medicine and rehabilitation , biology
This paper develops a model of campaign contributions and electoral competition. Contributors have separable preferences over policy and the electoral success of the candidate they support, as in influence buying. Policy preferences are single peaked over a single policy dimension. A candidate's chances of victory are increasing in the relative size of her war chest. In equilibrium, potential contributors balance incentives to donate to a candidate that is desirable on policy grounds and ensuring that they back the likely winner. With exogenous candidate positions, we find conditions under which, in equilibrium, contributors donate to the candidate that is less desirable on policy grounds solely because they consider the candidate viable . We also find that there is a degree of indeterminacy, wherein multiple equilibria inducing different lotteries over the final policy often exist. With endogenous candidate locations, we find that while median policies are always supportable as equilibrium, it is often the case that any pair of candidate locations is supportable in equilibrium. These results suggest that in settings with substantial influence buying, median policy interests may not be represented.