Abstract:
A substantial body of work in political economics has presumed the veracity of David Mayhew's classic theory of credit-claiming, whereby legislators enjoy electoral rewards for bringing home particularistic spending projects. However, recent empirical work has found that voters are generally unable to credit the correct legislator for each pork project, creating a research puzzle: How do parties benefit from pork spending if voters cannot properly assign credit? I revise Mayhew's classic theory to account for voter ignorance in bicameral legislatures, demonstrating that party leaders cope with voter uncertainty by directing pork away from neighborhoods represented by legislators from differing parties. I refer to this result as Split Delegation Bias, as a party leader strategically gives less pork to members whose districts overlap with the opposing party's districts. I introduce new line-item data on pork earmarks in the New York State Assembly to corroborate the formal model, using matching estimators to show that areas with Split Delegations receive 32% less pork, a difference of $4.03 per capita.