Continuities and Changes in the Processes of Mexican Migration and Return.

This article examines continuities and changes in the prevalence and determinants of first migration and return between Mexico and the United States. Results show a dramatic decline over time in the likelihood of migrants' making a first trip. The empirical design distinguishes processes affecting migrating cohorts from those emanating from period conditions, paying particular attention to changes in educational selectivity and the legal status of the flows.

The population-level impact of public-sector antiretroviral therapy rollout on adult mortality in rural Malawi.

Background: Recent evidence from health and demographic surveillance sites (HDSS) has shown that increasing access to antiretroviral therapy (ART) is reducing mortality rates in sub-Saharan Africa (SSA). However, due to limited vital statistics registration in many of the countries most affected by the HIV/AIDS epidemic, there is limited evidence of the magnitude of ART's effect outside of specific HDSS sites. This paper leverages longitudinal household/family roster data from the Malawi Longitudinal Survey of Families and Health (MLSFH) to estimate the effect of ART availability in public clinics on population-level mortality based on a geographically dispersed sample of individuals in rural Malawi.

Estimating the Technology of Cognitive and Noncognitive Skill Formation.

This paper formulates and estimates multistage production functions for child cognitive and noncognitive skills. Output is determined by parental environments and investments at different stages of childhood. We estimate the elasticity of substitution between investments in one period and stocks of skills in that period to assess the benefits of early investment in children compared to later remediation.