1.题目：Occupational Mobility and the Business Cycle (February 2008).
作者：Oscarini, Giuseppe and Vella, Francis
出处：NBER Working Paper No. W13819
链接： http://ssrn.com/abstract=1093657

2.题目：Occupational Mobility among Returned Migrants in Latin America: A Comparative Analysis
作者：Salvador D. Cobo
出处：The ANNALS of the American Academy of Political and Social Science July 2010 630: 245-268,
链接：http://ann.sagepub.com/content/630/1/245.short