1. Buenos Aires. Population and citizens of Buenos Aires.Buenos Aires - capital of Argentina and second largest metropolitan city in South America. The population of Buenos Aires is approximately 3 million. (Forstall, Greene and Pick) The majority of the population is made up of Spaniards and Italians. About 30% - and Métis representatives of other nationalities, including Jewish, English, Armenian, Japanese, Chinese, Arab and Korean communities. There are also migrants from neighboring countries, especially from Bolivia and Paraguay. (Hidalgo, Bengochea, Abilleira, Cabrera and Alvarez) The indigenous people of Buenos Aires have a semi-humorous nickname: Porteno. The population of the capital and its suburbs is growing rapidly, including through immigration and guest workers from Bolivia, Paraguay, Peru and other neighboring countries. The city is very multicultural, but the main separation occurs along class communities and not along racial lines, as in USE evidence on the impact of immigration on the labor market. As a result, immigrants play an important role in the labor market: they are "marginal" "workers, the decision on the location of wage differences across arbitral regions. Empirical evidence that immigrants improve labor market efficiency by providing labor additional and complementary. In general, immigration is not harmful to the host labor market or the economy. Most studies on the impact of immigration on the labor market were on the effect of immigration on wages and not on labor force participation or unemployment. Borjas (2003) noted that the impact of wages varies from what the study learns, but “hovers around zero” which contradicts the theoretical prediction of downward pressure because. ..... middle of the paper...... future this essay can be supplemented by different fields such as education, economics, crime etc. Bibliography: "Which are the largest? Why published populations for the world's major urban areas vary greatly", City Futures Conference, (University of Illinois at Chicago, July 2004) - Table 5 (p.34)"Immigration to Buenos Aires Bsas4U |. Bsas4U. Np, nd Web. December 12, 2013. The search engine. InfoWeb.net. December 9, 2011."Culture of Argentina." Countries and their cultures. Np, ndRyan McEntee "Immigration to Argentina and its Effects on Argentine Culture." Lewis, Daniel K. "The History of Argentina." Westport, Connecticut: Greenwood Press, 2001. “Estimating Genetic Admixture in the Uruguayan Population Based on the LDLR, GYPA, HBGG, GC, and D7S8 Loci.” KAMLA-RAJ ENTERPRISES. Np, nd Web.