This study investigates whether peers are a contributing factor in childhood body-weight outcomes. Using an instrumental variables method on exogenously assigned peers, we find that the weight of peers within the same grade and school significantly impacts body mass index (BMI) z-score of an...

Social networks play an important role in generating learning externalities that can drive the diffusion of innovative, and potentially poverty-reducing, technologies. This is particularly the case in developing countries where rural education, extension, and agricultural information services...

African immigrants in the United States (U.S.) experience immense challenges in the form of poverty, unemployment, and underemployment. Limited English language proficiency often restricts African immigrants to low-paying, unskilled positions. Ethnic entrepreneurship in the form of small-scale...