The document discusses the phenomenon of "brain drain" where highly skilled professionals migrate from poorer to richer countries for better opportunities. While some argue richer countries benefit unfairly, others see it as a natural movement of labor. The document examines arguments on both sides, concluding that brain drain is a natural process and developed countries have no obligation to compensate poorer ones, as the emigrants' remittances still benefit their home economies. It also provides the example of Kazakhstan's Prime Minister identifying brain drain as a challenge for its economy as skilled workers leave for opportunities abroad.