An interesting post on reversals of old patterns in human capital flows: http://www.project-syndicate.org/commentary/mohammed-bin-rashid-al-maktoum-highlights-the-success-of-some-developing-countries-in-reversing-the-outflow-of-their-most-talented-people
that gels well with my speech on same topic here: http://trueeconomics.blogspot.ie/2013/11/14112013-human-capital-age-of-change.html