food is readily available, we use of Engel's law in reciprocal form to measure affluence. Analysis of real income data for … present the results in the form of stochastic cross-country income comparisons …

obesity, income and gender. Obesity changes with income, but in a non-linear way. On average, obesity increases with income in … poor countries, has no relationship with income in middle-income countries and decreases with income for rich countries …. Within countries, obesity is concentrated among richer groups in low-income countries and evenly distributed in middle-income …