Worldwide, more than 215 million people have left the countries of their birth and moved elsewhere (World Bank, 2011). These migrants make up more than 3 percent of the world’s population. Another 700 million adults say they would migrate to another country if they could, according to polls conducted by Gallup (Esipova & Ray, 2009). Almost all of the world’s nations are either sending or receiving countries, or both. As of 2010, the world’s top three migrant sending countries were Mexico (about 12 million), India (about 11 million), and Russia (about 11 million). The top regional destinations were North America, Europe, and the Gulf States, which together contained about 44 percent of the world’s migrant population. The United States, alone, had more than 42 million migrants, making it the world’s top receiving country. As a region, though, Europe (depending on how defined), had about as many migrants. Germany, France, Spain, Italy, the Netherlands, and the United Kingdom, together, had about 38 million migrants in 2010. The Gulf States of Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates, combined, had more than 15 million migrants (World Bank, 2011). Public attitudes toward migration differ among receiving countries. In 2011, for example, a majority of adults in Spain, the UK, and the U.S. told the German Marshall Fund’s (GMF) Transatlantic Trends Survey (2011) that “immigration is more of a problem” than “an opportunity” (p. 5). In other countries, such as Germany, Italy, and the Netherlands, opinion was split: just about as many adults said “immigration is a problem” as said “immigration is an opportunity” (p. 5). Only among Canadian adults (surveyed through 2010) did a majority see immigration as more of an opportunity (German Marshall Fund, 2010, p. 4). These differences are likely the result of the receiving country’s social values and economic situation, as well as the history and characteristics of migration in that country. Views in sending countries are also mixed. In a 2012 Pew Research Center survey, half of Mexican adults (50 percent) said “people leaving [Mexico] for jobs in other countries” was “a very big problem” for Mexico (Pew Global Attitudes, 2012, p. 15). The same survey, however, found other issues more likely to be rated as “very big problems” (p. 16) for Mexico: cartel-related violence (according to 75 percent of Mexican adults), human rights violations by the military and police (74 percent), crime (73 percent), corrupt political leaders (69 percent), economic problems (68 percent), illegal drugs (68 percent), terrorism (62 percent), and pollution (58 percent). In 2010, the Association for Public Policy Analysis and Management (APPAM), the Dutch Ministry of Foreign Affairs, the Maastricht Graduate School of Governance, and the University of Maryland School of Public Policy held an international conference on migration in Maastricht, the Netherlands. Titled: Migration: A World in Motion: A Multinational Conference on Migration and Migration Policy, the conference brought together a worldwide audience of academics and professionals from think tanks, government agencies, the private sector, and civil society.
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