The Coleman–Shapley index: being decisive within the coalition of the interested
The Coleman–Shapley index: being decisive within the coalition of the interested
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科尔曼沙普利指数:在利益相关者联盟中具有决定性作用
DOI:
10.1007/s11127-019-00654-y
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发表时间:
2019
期刊:
影响因子:
1.6
通讯作者:
Huettner
中科院分区:
文献类型:
--
作者:
Casajus;André;Huettner
The Coleman power of a collectivity to act (CPCA) is a popular statistic that reflects the ability of a committee to pass a proposal. Applying the Shapley value to that measure, we derive a new power index—the Coleman–Shapley index (CSI)—indicating each voter’s contribution to the CPCA. The CSI is characterized by four axioms: anonymity, the null voter property, the transfer property, and a property stipulating that the sum of the voters’ power equals the CPCA. Similar to the Shapley–Shubik index (SSI) and the Penrose–Banzhaf index (PBI), our new index reflects the expectation of being a pivotal voter. Here, the coalitional formation model underlying the CPCA and the PBI is combined with the ordering approach underlying the SSI. In contrast to the SSI, voters are ordered not according to their agreement with a potential bill, but according to their vested interest in it. Among the most interested voters, power is then measured in a way similar to the PBI. Although we advocate the CSI over the PBI so as to capture a voter’s influence on whether a proposal passes, our index gives new meaning to the PBI. The CSI is a decomposer of the PBI, splitting the PBI into a voter’s power as such and the voter’s impact on the power of the other voters by threatening to block any proposal. We apply our index to the EU Council and the UN Security Council.
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DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Nilanjan Basu;Imants Paeglis;Mohammad Rahnamaei
通讯作者:
Mohammad Rahnamaei
DOI:
10.1016/j.geb.2017.05.001
发表时间:
2018
期刊:
Games Econ. Behav.
影响因子:
--
作者:
Casajus;Huettner
通讯作者:
Huettner
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
Jason Amaral;A. Tsay
通讯作者:
A. Tsay
DOI:
--
发表时间:
2016
期刊:
Games Econ. Behav.
影响因子:
--
作者:
Sascha Kurz;N. Maaser;S. Napel
通讯作者:
S. Napel
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
Jens Köke;L. Renneboog
通讯作者:
L. Renneboog