While strong social ties help individuals cope with missing institutions, trade is essentially limited to those who are part of the social network. We examine what makes the decision to trust a stranger different from the decision to trust a member of a given social network (a friend), by...

The Coase theorem emphasizes the role transactions costs play in efficient market outcomes. We document inefficient outcomes, in the presence of a transactions cost, in southern California land markets and the corresponding transition to efficient outcomes after the transactions cost is...

The historical pattern of the demographic transition suggests that fertility declines follow mortality declines, followed by a rise in human capital accumulation and economic growth. The HIV/AIDS epidemic threatens to reverse this path. A recent paper by Young (2005), however, suggests that...

The program evaluation literature for population and health policies is in flux, with many disciplines documenting biological and behavioral linkages from fetal development to late life mortality, chronic disease, and disability, though their implications for policy remain uncertain. Both macro-...

Heterogeneity in time discounting may reinforce the existing barriers to save and invest faced by rural populations in developing countries. We elicit a subjective discount rate for a varied sample of Ugandan villagers. In accordance with other studies, we have found the discount rate to...

The prevailing consensus is that foreign direct investment (FDI) effects are conditional. At the macro level, they depend upon minimum levels of human capital or financial development, while at the micro level, they depend on type of linkage (forwards, backwards, or horizontal). This paper...

Growth has been high and widespread in the last decade in Africa. Whether this shift in Africa's fortune has impacted poverty has been a subject of controversy. This paper brings into focus recent evidence on the pace of poverty reduction in Africa and addresses whether or not previously held...