Matilde Bombardini () (The University of British Columbia and IZA and The Rimini Centre for Economics Analysis, Rimini, Italy.) Francesco Trebbi () (University of Chicago,USA)
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This paper investigates the relationship between the size of interest groups in terms of voter representation and the interest group?s campaign contributions to politicians. We uncover a robust hump-shaped relationship between the voting share of an interest group and its contributions to a legislator. This pattern is rationalized in a simultaneous bilateral bargaining model where the larger size of an interest group a¤ects the amount of surplus to be split with the politician (thereby increasing contributions), but is also correlated with the strength of direct voter support the group can o¤er instead of monetary funds (thereby decreasing contributions). The model yields simple structural equations that we estimate at the district level employing data on individual and PAC donations and local employment by sector. This procedure yields structural estimates of electoral uncertainty and politicians e¤ectiveness as perceived by the interest groups. Our approach also implicitly delivers a novel method for estimating the impact of campaign spending on election outcomes: we ?nd that an additional vote costs a politician between 100 and 400 ollars depending on the district.
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Paper provided by Rimini Centre for Economic Analysis in its series Working Paper Series with number
21-07.
Find related papers by JEL classification: D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Models of Political Processes: Rent-seeking, Elections, Legislatures, and Voting Behavior P48 - Economic Systems - - Other Economic Systems - - - Other Economic Systems: Political Economy; Legal Institutions;
Property Rights H7 - Public Economics - - State and Local Government; Intergovernmental Relations
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References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
Grossman, Gene M & Helpman, Elhanan, 1994.
"Protection for Sale,"
American Economic Review,
American Economic Association, vol. 84(4), pages 833-50, September.
[Downloadable!] (restricted)
Other versions:
Gene M. Grossman & Elhanan Helpman, 1992.
"Protection For Sale,"
NBER Working Papers
4149, National Bureau of Economic Research, Inc.
[Downloadable!] (restricted)
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