Voting rules in sequential search by committees: theory and experiments
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Authors
Mak, WS
Seale, D
Rapoport, A
Gisches, EJ
Publication Date
2019-09Journal Title
Management Science
ISSN
1526-5501
Publisher
Institute for Operations Research and the Management Sciences
Volume
65
Issue
9
Pages
3949-4450
Type
Article
Metadata
Show full item recordCitation
Mak, W., Seale, D., Rapoport, A., & Gisches, E. (2019). Voting rules in sequential search by committees: theory and experiments. Management Science, 65 (9), 3949-4450. https://doi.org/10.1287/mnsc.2018.3146
Abstract
We propose a committee extension of the individual sequential search model called the “secretary problem,” where collective decisions on when to stop the search are reached via a pre-specified voting rule. We offer a game-theoretic analysis of our model, and then report two experiments on three-person committees with either uncorrelated or perfectly correlated preferences under three different voting rules, followed by a third experiment on single decision makers. Relative to equilibrium predictions, committees with uncorrelated preferences over-searched under minority and majority voting rules, but otherwise under-searched or approximated equilibrium play. Individually, committee members were often less strategic when their preferences were uncorrelated than when they were perfectly correlated. Collectively, committees’ decisions were more strategic than single decision makers’ only under the unanimity rule, though still not significantly better in terms of the decision makers’ welfare. Finally, across our experiments that involved committee search, the unanimity rule always optimized committee welfare.
Keywords
committee sequential search, voting rules, secretary problem, experiments
Identifiers
External DOI: https://doi.org/10.1287/mnsc.2018.3146
This record's URL: https://www.repository.cam.ac.uk/handle/1810/280028
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