Redstone Ilana, Massey Douglas S
Graduate Group in Demography, University of Pennsylvania, USA.
Demography. 2004 Nov;41(4):721-38. doi: 10.1353/dem.2004.0035.
Using the New Immigrant Survey Pilot, we compare answers to the census question on year of arrival in the United States with answers to questions about the dates and durations of earlier U.S. trips. We show that the year identified by the census does not correspond to the year of either the first or the last U.S. trip. Because many immigrants enter and leave the United States several times before becoming legal immigrants, the census question produces estimates of U.S. experience that are quite different from those produced by direct questions about trip durations.
通过使用新移民调查试点，我们将人口普查中关于抵达美国年份的问题答案与关于此前赴美旅行日期和时长的问题答案进行了比较。我们发现，人口普查所确定的年份与首次或最后一次赴美旅行的年份并不对应。由于许多移民在成为合法移民之前多次进出美国，人口普查问题得出的美国经历估计值与关于旅行时长的直接问题得出的估计值有很大不同。
