{"title":"过度自信与内幕交易具有相关信号","authors":"Wassim Daher , Sadeq Damrah","doi":"10.1016/j.mex.2025.103476","DOIUrl":null,"url":null,"abstract":"<div><div>This study extends the framework of Jain and Mirman (1999) model to the case of overconfident market makers à la Zhou (2011). We characterize the linear equilibrium outcomes and derive explicit formulas for the model parameters. A comparative statics analysis is then conducted with respect to the Jain and Mirman (1999) and Zhou (2011) models.<ul><li><span>•</span><span><div>Insider trading volume is independent of the level of overconfidence.</div></span></li><li><span>•</span><span><div>Key equilibrium outcomes depend on the variances of the underlying variables and the degree of overconfidence.</div></span></li></ul></div></div>","PeriodicalId":18446,"journal":{"name":"MethodsX","volume":"15 ","pages":"Article 103476"},"PeriodicalIF":1.9000,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Overconfidence and insider trading with correlated signals\",\"authors\":\"Wassim Daher , Sadeq Damrah\",\"doi\":\"10.1016/j.mex.2025.103476\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study extends the framework of Jain and Mirman (1999) model to the case of overconfident market makers à la Zhou (2011). We characterize the linear equilibrium outcomes and derive explicit formulas for the model parameters. A comparative statics analysis is then conducted with respect to the Jain and Mirman (1999) and Zhou (2011) models.<ul><li><span>•</span><span><div>Insider trading volume is independent of the level of overconfidence.</div></span></li><li><span>•</span><span><div>Key equilibrium outcomes depend on the variances of the underlying variables and the degree of overconfidence.</div></span></li></ul></div></div>\",\"PeriodicalId\":18446,\"journal\":{\"name\":\"MethodsX\",\"volume\":\"15 \",\"pages\":\"Article 103476\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2025-07-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"MethodsX\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2215016125003218\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MULTIDISCIPLINARY SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"MethodsX","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2215016125003218","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
Overconfidence and insider trading with correlated signals
This study extends the framework of Jain and Mirman (1999) model to the case of overconfident market makers à la Zhou (2011). We characterize the linear equilibrium outcomes and derive explicit formulas for the model parameters. A comparative statics analysis is then conducted with respect to the Jain and Mirman (1999) and Zhou (2011) models.
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Insider trading volume is independent of the level of overconfidence.
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Key equilibrium outcomes depend on the variances of the underlying variables and the degree of overconfidence.