THE IMPACT OF INCOME ON THE WEIGHT OF ELDERLY AMERICANS

被引:47
作者
Cawley, John [1 ]
Moran, John [2 ]
Simon, Kosali [1 ]
机构
[1] Cornell Univ, Dept Policy Anal & Management, Ithaca, NY 14853 USA
[2] Penn State Univ, Dept Hlth Policy & Adm, University Pk, PA 16802 USA
关键词
obesity; income; instrumental variables; BODY-MASS INDEX; SOCIAL-SECURITY; HABIT FORMATION; OBESITY; ASSOCIATION; OVERWEIGHT; MORTALITY; DISEASE; GROWTH;
D O I
10.1002/hec.1541
中图分类号
F [经济];
学科分类号
02 ;
摘要
This paper estimates the impact of income on the body weight and clinical weight classification of elderly Americans using a natural experiment that led otherwise identical retirees to receive significantly different Social Security payments based on their year of birth. We estimate models of instrumental variables using data from the National Health Interview Surveys and find no significant effect of income on weight. The confidence intervals rule out even moderate effects of income on weight and on the probability of being underweight or obese, especially for men. For example, they indicate that the income elasticity of body mass index is not greater in absolute value than 0.06 for men or 0.14 for women. Copyright (C) 2009 John Wiley & Sons, Ltd.
引用
收藏
页码:979 / 993
页数:15
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