Body mass and wages: New evidence from quantile estimation. 
I estimate the effect of body mass index (BMI) on wages across the unconditional distribution of wages.  I find that for whites and Hispanics the effect of BMI is generally decreasing across the wage distribution; at the .9 quantile of the wage distribution, a two standard deviation increase in BMI reduces wages by 8% for white males, 13% for white females, 9% for Hispanic males, and 16% for Hispanic females.  Conversely, at the .1 quantile, a two standard deviation increase in BMI affects wages by less than 2% for all these groups.  For black males, the effect of BMI is positive, and either increasing or non-linear in wages.  For black females, the estimates tend to be more uniform across the wage distribution.  I discuss possible explanations for these inter-quantile differences including preference discrimination, productivity differences, and statistical discrimination.  The results point to a new explanation for the observed correlation between socioeconomic status and body weight: individuals with higher income earning potential have differential incentives to maintain a lower BMI.