ABSTRACT
Migration is the exception rather than the rule in human behaviour. Less than 3 percent of the world’s population are international migrants.2 And yet, as this book attests, it has become a hot topic on which everyone has an opinion. In less than quarter of a century, heated discussion about the pros, cons and characteristics of migration has shifted dramatically from the specialist periphery of demography and law to centre stage. It has become an issue in electoral campaigns, political careers, media talk shows, tabloid headlines and editorials, even meetings of global business leaders at the Davos World Economic Forum. Migration has also become a key subject in the law.
