Voucher programs consist of three simultaneous reforms: (1) allowing parents to choose schools, (2) creating intense incentives for schools to increase enrollment, and (3) granting schools management autonomy to respond to demand. As a result, voucher advocates and critics tend to talk past each...

Little evidence is available on whether changing global rules so as to promote human rights can enhance development outcomes. The Convention on the Rights of the Child was almost universally ratified by the mid-1990s, but it is unclear whether treaty ratification was associated with better or...

The authors use cross-national social, political, economic, and institutional data to explain why some countries have stronger immunization programs than others, as measured by diphtheria-tetanus-pertussis (DTP) and measles vaccine coverage rates and the adoption of the hepatitis B vaccine....

A large-scale economic experiment, conducted on a representative sample of the US popula- tion, shows that cooperation creates special moral obligations. Participants in the experiment, acting as impartial spectators, transferred significantly more money to an unlucky worker when two individuals...

Optimism about the use of laws, constitutions, and rights to achieve social change has never been higher among practitioners. But the academic literature is skeptical that courts can direct resources toward the poor. This paper develops a nuanced account in which not all courts are the same....