Obesity and the Availability of Fast-Food: An Instrumental Variables Approach

R. Dunn
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引用次数: 37

Abstract

This paper addresses the simultaneous determination of fast-food availability on obesity rates through the use of instrumental variables, specifically the number of interstate exits in the county of residence. Using the 2005 Behavioral Risk Factor Surveillance Survey and self-collected data on the density of various fast-food restaurants in US counties, I find that a ten percent increase in the number of restaurants from the mean would increase BMI by .33 points, roughly 1.05kg for a male 1.78 meters tall and .88kg for a female 1.64 meters tall. The results are robust to the selection criteria for counties and the method yields results comparable to previous work looking at rural counties, though the sample employed here is much more generalizable.
肥胖和快餐的可得性:一个工具变量方法
本文通过使用工具变量,特别是居住县的州际出口数量,解决了快餐可获得性对肥胖率的同时确定。利用2005年行为风险因素监测调查和美国各县各种快餐店密度的自我收集数据,我发现餐馆数量比平均值增加10%,体重指数将增加0.33点,大约1.78米高的男性1.05公斤,1.64米高的女性0.88公斤。结果对于县的选择标准是稳健的,并且该方法产生的结果与之前研究农村县的工作相当,尽管这里使用的样本更具普遍性。
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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