We examine whether returns to capital are higher for farmers who borrow than for those who do not, a direct implication of many credit market models. We measure the difference in returns through a two-stage loan and grant experiment. We find large positive investment responses and returns to...

In this paper we show that the study of the farm size-productivity relationship hinges on the choice of productivity measure. Our main insight is that using yields, a partial measure of productivity, may not be informative for the size-productivity relationship because, in addition to total...

Agricultural productivity in Sub-Saharan Africa (SSA) lags far behind all other regions of the world. A long list of policy experiments has yielded more evidence on what fails than on what works. We analyze a randomized control trial of a rare scaled-up success story: One Acre Fund's small...

In discussing the paradoxical violation of expected utility theory that now bears his name, Maurice Allais noted that individuals tend to “greatly value” payoffs that are certain. Allais' observation would seem to imply that people will undervalue insurance relative to the predictions of...

Recent evaluations of traditional microfinance loans have found no significant impacts on borrower incomes or productive activities. We examine whether this can be remedied by (a) modifying loan features to facilitate financing of working capital needs of farmers, and (b) delegating selection of...

We provide a new and more complete analysis of the origins of the Dust Bowl of the 1930s, one of the most severe environmental crises in North America in the 20th Century. Severe drought and wind erosion hit the Great Plains in 1930 and lasted through 1940. There were similar droughts in the...

This paper examines whether agricultural insurance can boost investment by small scale farmers in West Africa. We conduct a randomized evaluation to analyze the impacts of index insurance for cotton farmers in Burkina Faso. We find no impact of insurance on cotton, but, consistent with...