We test how donors respond to new information about a charity's effectiveness. Freedom from Hunger implemented a test of its direct marketing solicitations, varying letters by whether they include a discussion of their program's impact as measured by scientific research. The base script, used...

This paper explores links between policy uncertainty and growth. It provides evidence on the correlation between policy uncertainty and per capita real GDP for 46 developing countries over the 1970-85 period. Cross-section regressions on growth suggest that after accounting for standard...