New formula predicts how people will migrate in coming decades / Eurekalert, 29 September 2008
http://www.eurekalert.org/pub_releases/2008-09/ru-nfp092608.php
"Nearly 200 million people now live outside their country of birth. But the patterns of migration that got them there have proven difficult to project. Now scientists at Rockefeller University, with assistance from the United Nations, have developed a predictive model of worldwide population shifts that they say will provide better estimates of migration across international boundaries."