Monotonic core allocation paths for assignment games

Monotonic core allocation paths for assignment games
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分配游戏的单调核心分配路径

DOI:
10.1007/s00355-019-01197-3
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发表时间:
2019
影响因子:
0.9
通讯作者:
Liu Shuige
Liu Shuige
中科院分区:
经济学4区
文献类型:
--
作者:
Abe Takaaki;Liu Shuige

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本文对Sprumont(Games Econ Behav 2:378-394,1990)的种群单调分配方案(PMAS)进行了改进,称之为分配博弈的单调核心分配路径(MCAP),它是一个沿局中人集合上的一个顺序沿着的分配序列,满足(1)每个分配都在该步相应局中人的子博弈的核心中,(2)每个局中人的收益在该序列中是不减的. MCAP的概念保持了PMAS的种群单调性,同时避免了PMAS在许多市场博弈中不存在的困难。我们表明,对于每个分配游戏,有一个顺序的球员沿着MCAP存在。MCAP的端子形成核心的细化。我们还表明,终端的MCAP符合极端的核心分配在两个子类的分配游戏:手套游戏和Böhm-Bawerk游戏。MCAP与极端核心分配的紧密联系表明,联盟形成过程的稳定性与结果的公平性之间存在一些冲突。
We introduce a modification of Sprumont (Games Econ Behav 2:378–394, 1990) population monotonic allocation scheme (PMAS), called monotonic core allocation path (MCAP) for assignment games, which is a sequence of allocations along an order on the set of players satisfying that (1) each allocation is in the core of the subgame of the corresponding players at that step, and (2) the payoffs for each player are non-decreasing through the sequence. The notion of MCAP preserves the population monotonicity of PMAS while avoids the difficulty that PMAS does not exist in many market games. We show that for every assignment game, there is an order of players along which a MCAP exists. The terminals of MCAP form a refinement of the core. We also show that the terminals of MCAP coincide with the extreme core allocations in two subclasses of assignment games: gloves games and Böhm-Bawerk games. The strong connection of MCAP with extreme core allocations suggests some conflict between the stability of a coalition formation process and the fairness of the resulting outcomes.
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