Abstract: We develop a simple model that accounts for the widely spread intuition that as committees get large, (well chosen) majority rules are preferable to unanimity. The model is one of collective search in which members do not control the proposal put to a vote. The main drawback of unanimity is that it makes it too difficult to find a proposal acceptable by all, which in turn induces extra costly delays in comparison with less demanding majority rules. The best majority rule is the one that best solves the trade-off between speeding up the decision process and avoiding the risk of adopting too inefficient proposals.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: preprint
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Cited By Count: 4
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