Linear Social Interactions Models
系统分析了线性社会互动模型中的识别问题，基于不完全信息博弈框架，探讨不同数据条件下内生和情境社会效应的识别，并讨论社会结构内生形成的影响。
This paper provides a systematic analysis of identification in linear social interactions models. This is a theoretical and econometric exercise as the analysis is linked to a rigorously delineated model of interdependent decisions. We develop an incomplete information game for individual choice under social influences that nests standard models as special cases. We consider identification of both endogenous and contextual social effects under alternative assumptions regarding an analyst's a priori knowledge of social structure or access to individual-level or aggregate data. Finally, we discuss potential ramifications for identification of endogenous formation of social structure.