Make sure you understand the following terms and you can explain them: 

Migration: definition of high-skilled migrants, attractive countries vs countries of opportunities, migrants as the engines of change, what are barriers faced by high-skilled migrants, why access to STEM occupations is difficult for high-skilled migrant women, integration paradox, benefits of low and high-skilled migration for receiving societies, benefits of migration for sending societies, circular migration as a triple win concept, policies that attract high-skilled migrants, brain waste, remittances, social remittances, policies that motivate return migration to sending countries, migration policy - point based system, why poor people do not migrate.