The United States has long been perceived as a land of opportunity, a place where prospective immigrants can achieve prosperity and upward mobility. Yet, both in the past and today, US natives have expressed concern that immigration lowers wages and that new arrivals fail to assimilate into US society. These fears have influenced historical immigration policy and are echoed in contemporary debates
Migrants accounted for 47% of the increase in the workforce in the United States over the past ten years. Migrants arrive with skills and contribute to human capital development of receiving countries. Migrants also contribute to technological progress.
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