Human capital flight is the emigration or immigration of individuals who have received advanced training at home. The net benefits of human capital flight for the receiving country are sometimes referred to as a "brain gain" whereas the net costs for the sending country are sometimes referred to as a "brain drain". In occupations with a surplus of graduates, immigration of foreign-trained professionals can aggravate the underemployment of domestic graduates, whereas emigration from an area with a surplus of trained people leads to better opportunities for those remaining. But emigration may cause problems for the home country if the trained people are in short supply there.
Theoretical physicist Albert Einstein, who immigrated to the United States to escape Nazi persecution, is an example of human capital flight as a result of political change.
Berlin Wall in November 1975
Emigration is the act of leaving a resident country or place of residence with the intent to settle elsewhere. Conversely, immigration describes the movement of people into one country from another. A migrant emigrates from their old country, and immigrates to their new country. Thus, both emigration and immigration describe migration, but from different countries' perspectives.
Japanese government poster in the early 20th century promoting emigration to South America, with Brazil highlighted
East Germany erected the Berlin Wall to prevent emigration westward.
