KEY QUESTION Use graphical analysis to show the gains and losses resulting from the migration of population from a low-income country to a high-income country. Explain how your conclusions are affected by ( a ) unemployment,

( b ) remittances to the home country, ( c ) backflows of migrants to their home country, and ( d ) the personal characteristics of the migrants. If the migrants are highly skilled workers, is there any justification for the sending country to levy a “brain drain” tax on emigrants?