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Coalition formation and history dependence
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Dutta, Bhaskar and Vartiainen, Hannu (2019) Coalition formation and history dependence. Theoretical Economics . (In Press)
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Abstract
Farsighted formulations of coalitional formation, for instance by Harsanyi (1974) and Ray and Vohra (2015), have typically been based on the von Neumann-Morgenstern (1944) stable set. These farsighted stable sets use a notion of indirect dominance in which an outcome can be dominated by a chain of coalitional ‘moves’ in which each coalition that is involved in the sequence eventually stands to gain. Dutta and Vohra (2017) point out that these solution concepts do not require coalitions to make optimal moves. Hence, these solution concepts can yield unreasonable predictions. Dutta and Vohra (2017) restricted coalitions to hold common, history independent expectations that incorporate optimality regarding the continuation path. This paper extends the Dutta-Vohra analysis by allowing for history dependent expectations. The paper provides characterization results for two solution concepts corresponding to two versions of optimality. It demonstrates the power of history dependence by establishing nonemptyness results for all finite games as well as transferable utility partition function games. The paper also provides partial comparisons of the solution concepts to other solutions.
| Item Type: | Journal Article | ||||
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| Subjects: | H Social Sciences > HB Economic Theory Q Science > QA Mathematics |
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| Divisions: | Faculty of Social Sciences > Economics | ||||
| Library of Congress Subject Headings (LCSH): | Game theory, Cooperative games (Mathematics) | ||||
| Journal or Publication Title: | Theoretical Economics | ||||
| Publisher: | Econometric Society | ||||
| ISSN: | 1933-6837 | ||||
| Official Date: | 15 May 2019 | ||||
| Dates: |
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| Date of first compliant deposit: | 22 May 2019 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | In Press | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
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