Like other countries seeking a progressive path to universalism, Peru has attempted to reduce inequalities in access to healthcare by granting the poor entitlement to tax-financed basic care without charge. We identify the impact of this policy by comparing the target populationś change in...

We report on a large randomized controlled trial of hospital insurance for above-poverty-line Indian households. Households were assigned to free insurance, sale of insurance, sale plus cash transfer, or control. To estimate spillovers, the fraction of households offered insurance varied across...

Innovation is part idea generation and part development. We build a model of "innovating-by-doing," whereby ideas come to practitioners. Successful innovation requires that practitioners' ideas be developed through costly effort. Our model nests existing theories of laboratory research and...