Using data from late 19th and early 20th century US prisons, this study considers how black and mulatto basal metabolic rates and calories varied with economic development. During the 19th century, black physical activity and net nutrition declined during the late 19th and early 20th centuries...

We investigate the evolution of global welfare in two dimensions: income per capita and life expectancy. First, we estimate the marginal distributions of income and life expectancy separately. More importantly, in contrast to previous univariate approaches, we consider income and life expectancy...