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Family size effects on childhood obesity: Evidence on the quantity-quality trade-off using the NLSY

机译:家庭规模对儿童肥胖的影响:使用NLSY进行量质权衡的证据

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In this study, we use matched mother-child data from the National Longitudinal Surveys to study the effects of family size on child health. Focusing on excess body weight indicators as children's health outcome of interest, we examine the effects of exogenous variations in family size generated by twin births and parental preference for mixed sex composition of their children. We find no significant empirical support in favor of the quantity-quality trade-off theory in instrumental variable regression analysis. This result is further substantiated when we make use of the panel aspects of the data to study child health outcomes of arrival of younger siblings at later parities. Specifically, when we employ child fixed effects analysis, results suggest that birth of a younger sibling is related to a decline in the likelihood of being overweight by 4 percentage points and a drop in the probability of illness by approximately 5 percentage points. (C) 2018 Elsevier B.V. All rights reserved.
机译:在这项研究中,我们使用来自国家纵向调查的匹配的母子数据来研究家庭规模对儿童健康的影响。着重关注超重指标作为关注儿童健康的结果,我们研究了双胞胎所产生的家庭规模的外源性变化以及父母对孩子的混合性别组成的偏好。在工具变量回归分析中,我们发现没有大量的经验支持量-质量权衡理论。当我们利用数据的面板方面来研究年幼兄弟姐妹到达较晚同龄儿童的儿童健康结果时,这一结果将进一步得到证实。具体而言,当我们采用儿童固定效应分析时,结果表明,同胞的出生与超重的可能性降低了4个百分点以及患病几率降低了约5个百分点有关。 (C)2018 Elsevier B.V.保留所有权利。

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