Beginning in the second half of the 17th century any deputy could dismiss a session of the Polish-Lithuanian parliament by shouting: I do not allow. This political device came to be known as liberum veto, an unceasing subject of controversy. Historians blame it for the decline and subsequent...

We consider a framework where the optimal decision rule determining the collective choice depends in a simple way on the decision makers’ posterior probabilities of a particular state of nature. Nevertheless, voting is generally an inefficient way to make collective choices and this paper...

We consider a framework where the optimal decision rule determining the collective choice depends in a simple way on the decision makers' posterior probabilities of a particular state of nature. Nevertheless, voting is generally an inefficient way to make collective choices and this paper sheds...

This is a survey on the recent game theoretic literature on committee decision making. We consider theoretical work on the role of (i) strategic voting, (ii) costly information acquisition, (iii) conflicting interests, and (iv) communication in committees. Moreover, we review recent experimental...