This paper studies technical efficiency and skipper skill (and explores potential proxies), using Tanzanian fishery data for the two major species, Nile perch and dagaa. The relative level of…

Forest data from the recent period of rapid growth in China show interesting macroeconomic and population impacts on the forest. It makes a theoretical argument for separating forests into managed and…

Analysis of the differences in firms’ responsiveness to PROPER (Indonesia’s successful public disclosure program for industrial pollution control) showed that foreign-owned firms and firms in densely…

Stone bunds in the Ethiopian highlands showed statistically significant and positive impact on yield in low-rainfall areas, but not in high-rainfall areas, and they did not have a statistically…

Measuring and analyzing the impact of fanya juu bunds on the value of crop production in Ethiopian highlands with high rainfall had the surprising conclusion that this technology reduced soil erosion…

This artefactual experiment in Ethiopia tested the hyperbolic discounting hypothesis by comparing time discounting over cash and consumption goods, using real payoffs. It found no difference in…

This study of the deleterious effect on fishing by the water hyacinth invasion of Lake Victoria found an unusual positive: the decline of fish catchability caused by the the abundance of water…

This examination of the impacts of market and institutional imperfections on technology adoption found that Ethiopian farmers’ decisions to adopt fertilizer significantly and negatively depended on…

Just how important social context is for voluntary contributions is investigated in a natural field experiment, where subjects made either actual or hypothetical contributions to a national park in…

In a natural field experiment, the authors quantified the importance of anonymity, reciprocity, and conformity through the provision of social reference levels in order to explain voluntary…