2012年希腊议会中的联盟与投票权：案例研究
Coalitions & Voting Power in the Greek Parliament of 2012: A Case-Study
摘要：
我们回顾了2012年5月和6月的希腊议会选举以及2014年12月由6月选举产生的议会举行的总统选举。这三个投票实例为权力指数的应用及其在语境中的解释提供了一个政治领域的实验。我们模拟希腊议会作为一个加权多数博弈，并评估投票权的Shapley Shubik，霍勒和相关时，科尔曼的指数。同时，根据实际事件，建立当事人之间的联系，并评估迈尔森指数。我们重点关注制度规则对当选政党之间权力分配的影响，并为正在进行的有关希腊议会和总统选举制度改革的政治辩论提供替代意见。此外，我们的研究结果有助于理解的联盟形成过程中的特定背景下，并提供经验证据的非选择性指标的性能在议会多党设置，可用于比较类似的案例研究在未来。
英文摘要：
We revisit the May and June 2012 Greek Parliamentary elections and the December 2014 Presidential election that was held by the June-elected Parliament. The three voting instances provide a political field experiment for the application of power indices and their interpretation in context. We model the Greek Parliament as a weighted majority game and assess voting power with the Shapley-Shubik, Holler and when relevant, Coleman's indices. Also, based on the actual events, we establish connections between parties and evaluate the Myerson index. We focus on the influence of institutional rules on the distribution of power among the elected political parties and add an alternative input to the ongoing political debate about the reform of both the Parliamentary and Presidential electoral system in Greece. Additionally, our findings contribute to the understanding of the coalition formation process in the particular context and provide empirical evidence on the performance of non-selective indices in parliamentary multi-party settings which can be used for comparison by similar case-studies in the future.
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