When people in developing countries worry about migration, they are usually concerned at the prospect of their best and brightest departure to Silicon Valley or to hospitals and universities in the developed world. These are the kind of workers that countries like Britain, Canada Australia try to attract by using immigration rules that privilege college graduates.

　　发展中国家的人们若为移民问题操心，往往是想到硅谷或发达国家的医院和大学去创造自己最辉煌的未来。英国、加拿大和澳大利亚等国给大学毕业生提供的优惠移民政策，就是为了吸引这部分人群。

　　Lots of studies have found that well-educated people from developing countries are particularly likely to emigrate. A big survey of Indian households in 2004 found that nearly 40% of emigrants had more than a high-school education, compared with around 3.3% of all Indians over the age of 25. The “brain drain” has long bothered policymakers in poor countries. They fear that it hurts their economies, depriving them of much-needed skilled workers who could have taught at their universities, worked in their hospitals and come up with clever new products for their factories to make.

　　诸多研究表明，发展中国家受过良好教育的人才往往可能有移民倾向。2004年，曾针对印度家庭进行过一次大型调查，结果发现，近40%有移民倾向的人受过中学以上教育，而25岁以上的印度人只有约3.3%受过中学以上教育。“人才流失”问题长期以来一直让发展中国家的决策者很苦恼，他们担心这种情况会危及其经济发展，夺去他们紧缺的技术人才，而这些人才本该在他们自己的大学任教，在他们自己的医院工作，为他们自己的工厂研发新产品。