"How can policies improve the welfare of people in economically lagging regions of countries? Should policies help jobs follow people? Or should they enable people to follow jobs? In most countries, market forces have encouraged the geographic concentration of people and economic activEities -...

We examine the impact of piped water on the under-1 infant mortality rate (IMR) in Brazil using a novel econometric procedure for the estimation of quantile treatment effects with panel data. The provision of piped water in Brazil is highly correlated with other observable and unobservable...