DP6168 Why a Group Needs a Leader: Decision-making and Debate in Committees.

Author(s): Wouter Dessein
Publication Date: March 2007
Keyword(s): Authority, Committees, Debate, Group decision-making, Leadership, Majority rule
JEL(s): D71, D72, D82, D83
Programme Areas: Industrial Organization
Link to this Page: cepr.org/active/publications/discussion_papers/dp.php?dpno=6168

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 decision-making reduces rent-seeking discussions and often results in a higher decision-quality relative to majority decision-making. Institutions which guarantee a "right to voice" by separating the roles of decision maker and discussion leader may further improve efficiency.