OECD (2010), "Entrepreneurship and migrants". Report on the link between migrations and entreprise plus job creations, showing migrants have in some countries and in some circumstances a significant contribution in creating companies and jobs. The report reviews factors influencing or explaining the rate of entrepreneurship (country of origin, policies in host country, level of education ...) and suggests there is no automatic link between unemployment rate in a country and proportion of immigrants; and immigration policies should consider a broader perspective than just the rate of unemployment in a country http://www.oecd.org/dataoecd/34/18/45068866.pdf