The Great Mexican Emigration
研究了1960至2000年墨西哥净移民，发现劳动力供给冲击贡献了20世纪末最后二十年墨西哥流向美国劳动力的五分之二，且移民率与初始队列规模正相关。
In this paper, we examine net emigration from Mexico over the period 1960 to 2000. The data are consistent with labor supply shocks having made a substantial contribution to Mexican emigration, accounting for two-fifths of Mexican labor flows to the United States over the last two decades of the twentieth century. Net emigration rates by Mexican state birth year cohort display a strong positive correlation with the initial size of the Mexican cohort relative to the corresponding U.S. cohort. In states with long histories of emigration, the effects of cohort size on emigration are relatively strong, consistent with the existence of preexisting networks. (c) 2010 The President and Fellows of Harvard College and the Massachusetts Institute of Technology.