ABSTRACT
International migration has long been a topic of debate. Questions concerning its causes and consequences have always been prominent in policy debate in North America, South America, Australasia, and more recently in Europe, where they have reached a heightened pitch. Why do some countries produce more migrants than others and why does the intensity of migration vary over time? How well do different migrant groups assimilate into the host country and to what extent do they suffer disadvantages compared with, and segmentation from, natives? Do immigrants rob jobs from natives? What impact do they have on wage rates and living standards in the host country? Does emigration improve the lot of those left behind?
