Abstract
We study how migrating from a poor country to a rich country affects economic beliefs, preference parameters, and household decision-making efficiency. In a ten-year follow-up survey of applicants to a migration lottery program we elicit risk and time preferences and pro-market beliefs for the migrants and the unsuccessful applicants. The successful and the unsuccessful applicants are each linked to closest relative households, who would stay in the home country if the applicant moved, to play lab-in-the-field games that measure intra-family trust and the efficiency of infra-family decision-making. Despite the large permanent income shock from migrating, there are no significant impacts on risk and time preferences, pro-market beliefs, or decision-making efficiency of transnational households. This stability in the face of such a large and life-changing event lend credence to economic models of migration that treat these determinants of decision-making as time-invariant.