{"title":"The Enemy of My Enemy Is My Friend: A New Condition for Stable Networks","authors":"Hideto Koizumi","doi":"10.2139/ssrn.3508607","DOIUrl":null,"url":null,"abstract":"This paper examines if an ancient principle, ``the enemy of my enemy is my friend,'' is a good predictor of group formation. I model coalition formation as a static network formation game with complementarities between a pair of adjacent nodes. I demonstrate that the ancient proverb is indeed a sufficient condition for the existence of a stable network that is also efficient.","PeriodicalId":274998,"journal":{"name":"PSN: Other International Relations Theory & Conflict (Topic)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"PSN: Other International Relations Theory & Conflict (Topic)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.3508607","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
This paper examines if an ancient principle, ``the enemy of my enemy is my friend,'' is a good predictor of group formation. I model coalition formation as a static network formation game with complementarities between a pair of adjacent nodes. I demonstrate that the ancient proverb is indeed a sufficient condition for the existence of a stable network that is also efficient.
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