A small group of economists now argue that brain drain might have a positive impact on Africa. Those skilled workers, their research shows, are often sending significant quantities of money back to their home countries. A March 2008 paper by economists William Easterly and Yaw Nyarko says remittances to Africa are likely under counted, but on average they are equivalent to 81 percent of the foreign aid (PDF) received by an individual country. A 2005 World Bank study showed that remittances from skilled workers to their families in Guatemala, Mexico, and the Philippines helped reduce poverty in those countries. [Mootbox]