Because household-based survey designs are notoriously ineffective in studying hard-to-reach groups such as irregular migrants, these groups, however numerically large they may be, are rarely represented in demographic analyses. In this paper, we report on the application of a workplace-based...

Ecological comparisons in sub-Saharan Africa show that HIV prevalence is lower where men are generally circumcised than where they are not. Randomized controlled trials have found a 50-60% reduction in HIV acquisition for newly circumcised men. Yet in Malawi, HIV prevalence is highest in several...

This study examines whether the increase of geographical heterogamy in the nineteenth and early twentieth century is related to modernization. Specifically, we test whether mass communication and mass transport enhanced the likelihood of a geographically heterogamous marriage as well as the...