时间：2025年5月30日 14:00-15:30（周五）

地点：明德主楼729

主讲人：肖如丽 印第安纳大学经济系副教授

主持人：朱萸副教授

主题：Peer Effects in Consideration and Preferences

讲座简介：

We develop a general model of discrete choice that incorporates peer effects in preferences and consideration sets. We characterize the equilibrium behavior and establish conditions under which all parts of the model can be recovered from a sequence of choices. We allow peers to affect only preferences, only consideration, or both. We show that these peer-effect mechanisms have different behavioral implications in the data. This allows us to recover the set and the type of connections between the agents in the network. We then use this information to recover the preferences and the consideration mechanisms of each agent. These nonparametric identification results allow for general forms of heterogeneity across agents and do not rely on the variation of either exogenous covariates or the set of available options (menus). We apply our results to model expansion decisions by coffee chains and find evidence of limited consideration. We simulate counterfactual predictions and show how limited consideration slows down competition.

主讲人简介：

肖如丽，印第安纳大学经济系副教授，研究领域包括微观计量经济学、产业组织和应用微观经济学，尤其专注于包含潜在变量的模型，如拍卖模型和动态博弈模型。她于约翰斯·霍普金斯大学获得经济学博士学位。其研究成果发表在多个顶级学术期刊上，包括《经济计量学期刊》（Journal of Econometrics）、《定量经济学》（Quantitative Economics）、《管理科学》（Management Science）、《商业与经济统计期刊》（Journal of Business & Economic Statistics）以及《人力资本期刊》（Journal of Human Capital）。