1. 题目：A comparison of upward and downward intergenerational mobility in Canada, Sweden and the United States    作者：Miles Coraka, Matthew J. Lindquistb, Bhashkar Mazumder
    期刊：Labour Economics，Available online 30 April 2014

2.题目：CONSOLIDATING THE EVIDENCE ON INCOME MOBILITY IN THE WESTERN STATES OF GERMANY AND THE UNITED STATES FROM 1984 TO 2006
   作者：GULGUN BAYAZ-OZTURK1, RICHARD V. BURKHAUSER2，KENNETH A. COUCH3
   期刊：Economic Inquiryn，Volume 52, Issue 1, pages 431–443, January 2014

3.题目：Is the United States Still a Land of Opportunity? Recent Trends in Intergenerational Mobility
   作者：Chetty, Raj, Nathaniel Hendren, Patrick Kline, Emmanuel Saez, and Nicholas Turner
   期刊：American Economic Review,2014，104(5): 141-47.

4.题目：Mobility, taxation and welfare.
  作者：Sami Bibi, Jean-Yves Duclos, Abdelkrim Araar
  期刊：Social Choice and Welfare,March 2014, Volume 42, Issue 3, pp 503-527