We estimate marginal returns to medical care for at-risk newborns by comparing health outcomes and medical treatment provision on either side of common risk classifications, most notably the "very low birth weight" threshold at 1500 grams. First, using data on the census of US births in...

Children spend years in foster care, and there are concerns that bureaucratic hurdles contribute to unnecessarily long stays. In a novel approach to policy making, the Chilean government randomized the introduction of a program aimed at reducing these delays in order to evaluate its effects on...