The paper reviews recent literature on the economics of migration and diasporas, focusing on economic gains and opportunities that these diasporas could represent for home countries. In addition, the paper discusses policies aimed at leveraging this "diaspora capital".

Recent immigration policies have created massive uncertainty for international students to obtain F-1 visas. Yet, before the COVID-19 pandemic, student visa applicants already faced an approximately 27 percent refusal rate that varies by time and region. Using data on the universe of SAT takers...