This research advances the hypothesis that resource abundant economies characterized by a socially cohesive workforce and network externalities triggered the emergence of efficiency-enhancing inclusive institutions designed to restrict mobility and to enhance the attachment of community members...

Prevention of mother-to-child transmission of HIV (PMTCT) is the single most effective HIV prevention intervention in practice today. Nonetheless, little reliable empirical evidence exists on the behavioral effects of PMTCT. This paper documents the rapid expansion of access to PMTCT in Zambia...