Why a Group Needs a Leader: Decision-Making and Debate in Committees
I develop a model of group decision-making, in which a committee generates proposals and holds open discussions, but the ultimate decision is either taken by a leader (decision by authority) or by majority vote. Optimal communication processes are studied that combine both cheap talk statements (proposals) and costly state verification (discussions). I show that by favouring one particular agent—the leader—authoritative decisionmaking reduces rent-seeking discussions and often results in a higher decision-quality relative to majority decision-making.