This paper examines the institutional determinants of discipline in legislative parties building on the premise that leaders need to maintain support within the organization to continue leading. Payments distributed by the incumbent on the spot increase the value of promises of future benefits...

What explains significant variation across countries in the use of vote buying instead of campaign promises to secure voter support? This paper explicitly models the tradeoff parties face between engaging in vote buying and making campaign promises, and explores the distributional consequences...

Experiments evaluate the fit of human behaviour to the Shapley-Shubik power index (SSPI), a formula of voter power. Groups of six subjects with differing votes divide a fixed purse by majority rule in online chat rooms. Earnings proxy for measured power. Chat rooms and processes for selecting...

We examine the consequences of lobbying and vote buying, assuming this practice were allowed and free of stigma. Two .lobbyists. compete for the votes of legislators by oÞering up-front payments to the legislators in exchange for their votes. We analyze how the lobbyists.budget constraints and...