In electoral competitions, interest groups will be willing to finance politicians that require funding for campaign advertising, in exchange for policy favors. Our model predicts that interest groups with more extreme preferences will devote more resources to campaign financing. This occurs...

In an electoral race, interest groups will be willing to finance political candidates’ campaigns in return for favors that are costly to voters. Starting from the empirical observation of split contributions, we develop a theoretical model of directly informative campaign advertising with...