Ambinakudige Shrinidhi, Parisi Domenico
Popul Rev. 2010;49(2):n/a. doi: 10.1353/prv.0.0023.
In this study, migration data compiled by the Internal Revenue Serve (IRS) and the US Census Bureau for 2006-07 were used to analyse internal migration patterns using migration and income effectiveness for the counties containing the 25 most populous cities in the United States. The results indicated that both large metropolitan and rural counties have lost population and income due to migration. Small metropolitan and non-metropolitan counties closer to cities gained population and income. Counties in South Florida attracted a large number of higher-income migrants from the largest cities in the US. In the last 13 years, New York, Los Angeles and Chicago, the three most populous cities in the US, had negative migration effectiveness. Suburban areas and second-tier cities continued to attract people from large metropolitan areas.
在本研究中，美国国税局（IRS）和美国人口普查局汇编的2006 - 2007年移民数据被用于分析美国25个人口最多城市所在县的内部移民模式，采用了移民和收入有效性的方法。结果表明，由于移民，大都市县和农村县都出现了人口和收入流失。靠近城市的小都市县和非都市县人口和收入增加。南佛罗里达的县吸引了大量来自美国最大城市的高收入移民。在过去13年里，美国人口最多的三个城市纽约、洛杉矶和芝加哥的移民有效性为负。郊区和二线城市继续吸引来自大都市地区的人口。
