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...

Observing legislator's voting behavior plays a crucial role in the parliamentary process, both in terms of representation and in terms of accountability. When a MP votes either for or against a proposal, and so for or against his party' s policy line, this action can be observed by both voters...

We study communication in committees selecting one of two alternatives when consensus is required and agents have private information about their preferences. Delaying the decision is costly, so a form of multiplayer war of attrition emerges. Waiting allows voters to express the intensity of...