TY  - JOUR
AU  - Case,Anne
AU  - Menendez,Alicia
TI  - Sex Differences in Obesity Rates in Poor Countries: Evidence from South Africa
JF  - National Bureau of Economic Research Working Paper Series
VL  - No. 13541
PY  - 2007
Y2  - October 2007
UR  - http://www.nber.org/papers/w13541
L1  - http://www.nber.org/papers/w13541.pdf
N1  - Author contact info:
Anne Case
367 Wallace Hall
Princeton University
Princeton, NJ 08544
Tel: 609/258-2177
Fax: 609/258-5974
E-Mail: accase@princeton.edu

Alicia Menendez
Harris School of Public Policy
University of Chicago
Chicago, IL 60637
E-Mail: menendez@uchicago.edu
AB  - Globally, men and women face markedly different risks of obesity. In all but of handful of (primarily Western European) countries, obesity is more prevalent among women than men. In this paper, we examine several potential explanations for this phenomenon. We analyze differences between men and women in reports and effects of the proximate causes of obesity -- physical exertion and food intake -- and the underlying causes of obesity -- childhood and adult poverty, depression, and attitudes about obesity. We evaluate the evidence for each explanation using data collected in an African township outside of Cape Town. Three factors explain the greater obesity rates we find among women. Women who were nutritionally deprived as children are significantly more likely to be obese as adults, while men who were deprived as children face no greater risk. In addition, women of higher adult socioeconomic status are significantly more likely to be obese, which is not true for men. These two factors can fully explain the difference in obesity rates we find in our sample. Finally (and more speculatively), women's perceptions of an 'ideal' female body are larger than men's perceptions of the 'ideal' male body, and individuals with larger 'ideal' body images are significantly more likely to be obese.
ER  -