Immigration Economic Restructuring and Internal Migration among U.S. Metropolitan Labor Markets, 1965-1990

9310647巴夫·利特尔知道流向特定目的地的移民如何影响当地移民的离开决定或目的地选择。也就是说，涌入美国的移民是否与内部人口流动有关，这种活动是否构成了更广泛的区域间劳动力交换体系的一部分？如果是这样，那么必须重新评估一个国家内的人口流动不受移民潮影响的假设。此外，之前衡量移民对受影响劳动力市场上当地人福利的影响的研究也需要重新评估。如果不能认识到移民与土著内部移徙之间的重要联系，可能会严重低估移民对土著福利的影响，因为许多移民影响都会在移民系统内消散。该项目将通过开发1965至1990年间美国的一系列移民模型来衡量土著移民对移民的反应随时间的稳定性。这些模型将测试所有大都市地区按职业划分的移民流动和国内移民流动之间的联系。将对21个最大的大都市地区进行详细研究，以阐明移民和移民对每个城市就业结构的影响随时间推移的背景微妙之处。将使用有关时期美国人口普查的公共使用微观数据样本来估计一系列移民的计量经济模型。1965年，具有里程碑意义的立法通过，放宽了对美国移民数量的上限。迄今为止，计量经济学研究尚未发现移民供应的增加对当地人的收入或就业机会产生重大不利影响的情况。这一研究项目将对移民影响的分析扩展到移民是否导致本地工人转移到其他地方以及这种流动对两个群体的就业情况产生了什么影响的问题。它涉及到找出移民对移民的反应是否跨越了太空，这将增加关于移民进入美国的空间背景的重要新知识。***

9310647 Barff Little is known about how flows of immigrants to a particular destination affect the decision to leave or the destination choice of native migrants. That is, are flows of immigrants into the United States linked to internal flows of population, and does this activity form part of a broader system of interregional labor exchange? If so, then the hypothesis that population movements within a country are unaffected by immigrant streams must be reassessed. Additionally, previous research measuring the effect of immigration on the welfare of natives in impacted labor markets also requires reevaluation. Failure to recognize important linkages between immigration and internal migration of natives may result in serious underestimation of the effects of immigration on the welfare of natives since many immigration impacts be dissipated within the migration system. This project will measure the stability of the native migratory response to immigration over time by developing a series of migration models for the United States between 1965 and 1990. The models will test the linkage between immigrant flows and internal migration streams by occupation for all metropolitan areas. The 21 largest metropolitan areas will be examined in detail in order to illuminate the contextual subtleties of immigrant and migrant impact on each city's employment structure through time. A series of econometric models of migration will be estimated using public use microdata samples from the U.S. Census of Population for the time period in question. In 1965, landmark legislation was passed which relaxed the upper limits on the volume of immigration to the U.S. Econometric research so far has uncovered no instance where an increase in the supply of immigrants significantly and adversely affected the earnings or employment opportunities of natives. This research project extends the analysis of immigrant impacts to the question of whether immigrants cause native workers to move to other locations and what affect this movement has on the employment situation of both groups. It involves finding out if the migration response to immigration is even across space, which will add important new knowledge about the spatial context of immigration into the United States. ***