Many decisions taken in legislatures or committees are subject to lobbying efforts. A seminal contribution to the literature on vote-buying is the legislative lobbying model pioneered by Groseclose and Snyder (1996), which predicts that lobbies will optimally form supermajorities in many cases....

Individuals and two-person teams play a hidden - action trust game with pre - play communication. We replicate previous results for individuals that non-binding promises increase cooperation rates. But this does not extend to teams. Wh ile teams make non-binding promises to cooperate at the same...