"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...

Introduction : new rules, old practices -- Money and candidate quality -- Adapting to the mixed system -- Spending and vote shares -- Party strategies and money politics -- The evolution of support groups -- The creation and costs of informal norms -- Conclusion -- Appendixes -- References --...