Storable Votes and Agenda Order Control. Theory and Experiments

Alessandra Casella

No 7050, CEPR Discussion Papers from C.E.P.R. Discussion Papers

Abstract: The paper studies a voting scheme where members of a committee voting sequentially on a known series of binary proposals are each granted a single extra bonus vote to cast as desired - a streamlined version of Storable Votes. When the order of the agenda is exogenous, a simple sufficient condition guarantees the existence of welfare gains, relative to simple majority voting. But if one of the voters controls the order of the agenda, does the scheme become less efficient? The endogeneity of the agenda gives rise to a cheap talk game, where the chair can use the order of proposals to transmit information about his priorities. The game has multiple equilibria, differing systematically in the precision of the information transmitted. The chair can indeed benefit, but the aggregate welfare effects are of ambiguous sign and very small in all parameterizations studied. The theoretical conclusions are tested through laboratory experiments. Subjects have difficulty identifying the informative strategies, and tend to cast the bonus vote on their highest intensity proposal. As a result, realized payoffs are effectively identical to what they would be if the agenda were exogenous. The bonus vote matters; the chair's control of the agenda does not.

Keywords: Cheap talk; Committees; Storable votes; Voting; Agenda power (search for similar items in EconPapers)
JEL-codes: C9 D02 D7 D8 (search for similar items in EconPapers)
Date: 2008-11
New Economics Papers: this item is included in nep-cdm and nep-pol
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Related works:
Working Paper: Storable Votes and Agenda Order Control. Theory and Experiments (2008)
Working Paper: Storable Votes and Agenda Order Control. Theory and Experiments (2008)
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