This paper investigates the cause of the collapse of the Second Yatsenyuk Ukrainian government in 2016 and the factions formed throughout the process using a novel method that combines roll call vote analysis and dynamic network analysis. Our findings suggest that a major factor in the dissolution of the coalition government was the 2015 constitutional amendment .We also found that the coalition split into two factions following this event: the People’s Front and Petro Poroshenko Bloc as one faction, and the Union and Fatherland as the other. This split could have a large impact on the 2019 Ukrainian Election and give current President Petro Poroshenko an advantage over Yulia Tymoshenko, who is leading in the polls.

中文翻译：

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Yatsenyuk第二届政府垮台：唱名表决和动态网络分析

本文使用结合唱名投票分析和动态网络分析的新颖方法，研究了第二任乌克兰乌克兰政府在2016年垮台的原因以及在整个过程中形成的派系。我们的发现表明，解散联盟政府的一个主要因素是2015年的宪法修正案。我们还发现，在此事件之后，联盟分为两个派系：人民阵线和彼得罗·波罗申科集团（Petro Poroshenko Bloc）作为一个派系，以及联邦和祖国和其他一样。这种分裂可能会对2019年乌克兰大选产生重大影响，并使现任总统佩特罗·波罗申科（Petro Poroshenko）较民意调查领先的尤利娅·季莫申科（Yulia Tymoshenko）具有优势。