Gender Peer Effects Heterogeneity in Obesity

Rokhaya Dieye, B. Fortin
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引用次数: 11

Abstract

This paper explores gender peer effects heterogeneity in adolescent Body Mass Index (BMI). We propose a utility-based non-cooperative social network model with effort technology. We allow the gender composition to influence peer effects. We analyze the possibility of recovering the fundamentals of our structural model from the best-response functions. We provide identification conditions of these functions generalizing those of the homogeneous version of the model. Extending Liu and Lee [2010], we consider 2SLS and GMM strategies to estimate our model using Add Health data. We provide tests of homophily in the formation of network and reject them after controlling for network (school) fixed effects. The joint (endogenous plus contextual) gender homogeneous model is rejected. However, we do not reject that the endogenous effects are the same. This suggests that the source of gender peer effects heterogeneity is the contextual effects. We find that peers’ age, parents’ education, health status, and race are relevant for the latter effects and are gender-dependent.
肥胖的性别同伴效应异质性
探讨性别同伴效应在青少年身体质量指数(BMI)中的异质性。利用努力技术提出了一种基于效用的非合作社会网络模型。我们允许性别构成影响同伴效应。我们分析了从最佳响应函数中恢复结构模型基本原理的可能性。我们提供了这些函数的识别条件,推广了模型齐次版本的识别条件。扩展Liu和Lee[2010],我们考虑2SLS和GMM策略来使用Add Health数据估计我们的模型。我们提供了网络形成的同质性检验,并在控制了网络(学校)固定效应后拒绝了它们。联合(内源性加语境)性别同质模型被拒绝。然而,我们并不否认内生效应是相同的。这表明性别同伴效应异质性的来源是情境效应。我们发现同伴的年龄、父母的受教育程度、健康状况和种族与后一种影响相关,并且是性别依赖的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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