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題名 Endogenous alliances in survival contests
作者 潘振宇
Pan, Chen-Yu
Konishi, Hideo
貢獻者 國貿系
關鍵詞 Contest Theory;Alliance;Open-membership game;Effort complementarity;Coalition formation
日期 2021-09
上傳時間 2022-04-12
摘要 Esteban and Sákovics (2003) showed in their three-person game that an alliance never appears in a possibly multi-stage contest game for an indivisible prize when allies’ efforts are perfectly substitutable. In this paper, we introduce allies’ effort complementarity in alliances by using a CES effort aggregator function. We consider an open-membership alliance formation game followed by two contests: one played by alliances, and one within the winning alliance. We show that if allies’ efforts are too substitutable or too complementary, there is no meaningful alliance in equilibrium. However, if allies’ efforts are moderately complementary to each other, then competition between two alliances is a subgame perfect equilibrium, which Pareto-dominates the equilibrium in a no-alliance single-stage contest. We also show that if forming more than two alliances is supported in equilibrium, then it Pareto-dominates two-alliance equilibrium. Nevertheless, the parameter space for such an allocation to be supported as an equilibrium shrinks when the number of alliances increases.
關聯 Journal of Economic Behavior & Organization, Vol.189, pp.337-358
資料類型 article
DOI https://doi.org/10.1016/j.jebo.2021.06.039
dc.contributor 國貿系
dc.creator (作者) 潘振宇
dc.creator (作者) Pan, Chen-Yu
dc.creator (作者) Konishi, Hideo
dc.date (日期) 2021-09
dc.date.accessioned 2022-04-12-
dc.date.available 2022-04-12-
dc.date.issued (上傳時間) 2022-04-12-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/139831-
dc.description.abstract (摘要) Esteban and Sákovics (2003) showed in their three-person game that an alliance never appears in a possibly multi-stage contest game for an indivisible prize when allies’ efforts are perfectly substitutable. In this paper, we introduce allies’ effort complementarity in alliances by using a CES effort aggregator function. We consider an open-membership alliance formation game followed by two contests: one played by alliances, and one within the winning alliance. We show that if allies’ efforts are too substitutable or too complementary, there is no meaningful alliance in equilibrium. However, if allies’ efforts are moderately complementary to each other, then competition between two alliances is a subgame perfect equilibrium, which Pareto-dominates the equilibrium in a no-alliance single-stage contest. We also show that if forming more than two alliances is supported in equilibrium, then it Pareto-dominates two-alliance equilibrium. Nevertheless, the parameter space for such an allocation to be supported as an equilibrium shrinks when the number of alliances increases.
dc.format.extent 1180084 bytes-
dc.format.mimetype application/pdf-
dc.relation (關聯) Journal of Economic Behavior & Organization, Vol.189, pp.337-358
dc.subject (關鍵詞) Contest Theory;Alliance;Open-membership game;Effort complementarity;Coalition formation
dc.title (題名) Endogenous alliances in survival contests
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.1016/j.jebo.2021.06.039
dc.doi.uri (DOI) https://doi.org/10.1016/j.jebo.2021.06.039