An important dimension of globalization is the migration of people. While the proportion of migration was greater during the earlier mercantilism period, sovereign border controls to a large extent create a filtration process for migration. About 175 million people lived in a different country than their birth country in 2000. They can be separated into three categories: 158 million international migrants, 16 million refugees, and 900,000 asylum seekers.
An important global trend in the future is the movement of labor from developing to developed countries because of the latter’s need for labor with an aging population. Family-sponsored migration makes up 45 to 75 percent of international migrants who mainly originate from developing countries to countries in Europe and North America.
Even before 9/11, legal migration of labor needed to overcome substantial bureaucracy in the border control process. The number applying for entry into developed countries often far exceeds the number permitted. Due to extensive legal processes, some migrants enter illegally, while others become illegal with expiration of legal status.
Anti-terrorism measures imposed shortly after the 9/11 attacks resulted in a minor shift in the flow of migrants away from the United States toward other developed countries. With the aging of baby boomers in many developed countries, future globalization of migrant labor flows is receiving more attention, especially in education, health care, retirement funding, and housing, as well as meeting workforce needs to sustain business competitiveness.
甚至在9 / 11，需要克服在边境控制过程实质官僚制的劳动法律的迁移。申请的号码进入发达国家往往数量远远超过允许的。由于广泛的法律程序，一些移民非法进入，而其他人成为非法与合法地位到期。
反恐怖主义措施后不久，9 / 11的攻击，导致从美国向其他发达国家的移民流动是轻微的移位施加。随着婴儿潮一代的许多发达国家的老龄化，移民劳动力流动的未来全球化正在引起越来越多的关注，特别是在教育，医疗，养老基金，和住房，以及满足员工需要维持企业竞争力。