Binary Choice Models with Social Network under Heterogeneous Rational Expectations
将Brock和Durlauf的二元选择完全网络模型扩展到一般网络模型，允许个体基于他人特征形成异质性理性预期，并识别内生、情境和相关效应。实证分析青少年吸烟行为，发现显著的内生和情境效应。
This paper extends Brock and Durlauf's (2001a, 2001b) binary choice complete network (or group interaction) model with homogeneous rational expectations to a general network model with heterogeneous rational expectations. In our model, individuals will form expectations regarding peers' behaviors taking into account their characteristics. Endogenous, contextual, and correlated effects are all identifiable. Conditions for unique equilibrium are established. For a complete network with heterogeneous rational expectations, multiple equilibria can be characterized by an aggregate scalar index. The empirical results on adolescents' smoking behaviors show significant endogenous and contextual effects, even after controlling for school-grade random effects and school fixed effects. © 2014 The President and Fellows of Harvard College and the Massachusetts Institute of Technology