The process of skilled international migration from developing countries to developed ones has considerably grown during two recent decades. In 1970s, most economists agreed that brain drain has resulted in reduction of human capital stock and thus hurt to economy of developing countries; while in the studies of the decades, useful effects of brain drain on the economy of source countries has been controversial. Despite these different studies, total effect of human capital migration on economy of source countries is unknown. In this paper, it is tried to clear effect of brain drain on economic growth of source countries.
)
