As formalized by Montgomery (1991), referral by employees improves efficiency if the unobserved quality of a new worker is higher than that of unrefereed workers. Using data compiled from army archives, we test whether the referral system in use in the British colonial army in Ghana served to...

This paper examines migrants' choice of destination conditional on migration. To this end, we design an empirical strategy which remedies both migration selection and unobserved heterogeneity problems. The study uses data from two rounds of Nepal Living Standard Surveys and a Population Census...

Expansion in mobile phone coverage has improved access to information throughout the developing world, particularly within sub-Saharan Africa. The existing evidence suggests that information technology has improved market efficiency and reduced consumer prices for certain commodities. There are...

The paper reports the result of an experimental game on asset integration and risk taking. We find evidence that winnings in earlier rounds affect risk taking in subsequent rounds, but no evidence that real life wealth outside the experiment affects risk taking. We find some evidence of...

Using census data from Nepal we examine how the partial derivatives of predicted household welfare vary with parental education.We focus on fertility, child survival, schooling, and child labor. Female education is not as strongly associated with beneficial outcomes as is often assumed. Male...

The literature has shown that network architecture depends crucially on whether links are formed unilaterally or bilaterally, that is, on whether the consent of both nodes is required for a link to be formed. We propose a test of whether network data is best seen as an actual link or willingness...

Theory is divided on whether falling transport costs lead to more or less spatial concentration of economic activity. Using US county-level data we find that aggregate employment became more concentrated between 1972-92. This aggregate picture hides important differences between sectors though....

Using original survey data, we examine how insecurity affects welfare. Correcting for unobserved heterogeneity and possible endogeneity, we find an effect of insecurity on incomes, school enrolment, health status, and infant mortality. Results are robust to the inclusion of various shocks...

This Paper examines the spatial distribution of jobs across US counties and investigates whether sectoral employment is becoming more or less concentrated. The existing literature has found deconcentration (convergence) of employment across urban areas. Cities only cover a small part of the US...

The recent literature has shown that subjective welfare depends on relative income. Attempts to test this relationship in poor countries have yielded conflicting results, suggesting that the relationship is not universal or only applies above a certain income level. We revisit the issue using...