Migration impact assessment : new horizons During the last few decades the world has experienced an unprecedented level of cross border migration. While this has generated significant socio economic gains for host countries as well as sometimes for the countries of origin the costs and benefits involved are unevenly distributed. Consequently growing global population mobility is a hotly debated topic both in the political arena and by the general public. Amidst a plethora of facts opinions and emotions the assessment of migration impacts must be grounded in a solid scientific evidence base. This analytical book outlines and applies a range of the scientific methods that are currently available in migration impact assessment (MIA). The book provides various North American and European case studies that quantify socio economic consequences of migration for host societies and for immigrants themselves.