Patterns of correlation in innovation and contractual practices among manufacturing firms in Ethiopia and Sudan are documented. Network data that indicate whether any two firms in the utilized sample do business with each other, buy inputs from a common supplier, or sell output to a common...

This paper investigates whether social structure helps or hinders factor allocation using unusually rich data from The Gambia. Evidence indicates that land available for cultivation is allocated unequally across households; and that factor transfers are more common between neighbors, co-ethnics,...

This paper investigates whether the prospect of redistribution hinders the formation of efficiency-enhancing groups. An experiment is conducted in a Kenyan slum, Ugandan villages, and a UK university town and used to test, in an anonymous setting with no feedback, whether subjects join a group...

A business plan competition is conducted to test whether survey instruments or panel judges are able to identify the fastest growing firms. Participants submitted six- to eight-page business plans and defended them before a three- or four-judge panel. Applicants are surveyed shortly after they...

Central place theory predicts that agglomeration can arise from external shocks. This paper investigates whether gold mining is a catalyst for proto-urbanization in rural Ghana. Using cross-sectional data, the analysis finds that locations within 10 kilometers from gold mines have more night...

Mobile phone coverage has expanded considerably throughout the developing world, particularly within sub-Saharan Africa. Existing evidence suggests that increased access to information technology has improved agricultural market efficiency for consumer markets and certain commodities, but there...

This paper uses high-resolution satellite data on the proportion of buildings in a 250x250 meter cell to study the evolution of human settlement in Ghana over a 40-year period. The analysis finds a strong increase in built-up area over time, mostly concentrated in the vicinity of roads, and also...

We examine a largely unexplored source of downward bias in peer effect estimation, namely, exclusion bias. We derive formulas for the magnitude of the bias in tests of random peer assignment, and for the combined reflection and exclusion bias in peer effect estimation. We show how to...

We design an original laboratory experiment to investigate whether redistributive actions hinder the formation of Pareto-improving groups. We test, in an anonymous setting with no feedback, whether people choose to destroy or steal the endowment of others and whether they choose to give to...