New tools allow one to study the incidence of economic growth by initial level of income, and to measure the rate of pro-poor growth in an economy. An application is provided using data for China in the 1990s

"Recent literature and new data help determine plausible bounds to some key demographic differences between the poor and non-poor in the developing world. The author estimates that selective mortality-whereby poorer people tend to have higher death rates-accounts for 10-30 percent of the...