4Daymont,Thomas N.and Paul J.Andrisani,"Job Preferences,College Major,and the Gender Gap in Earnings," Journal of Human Resources,1984,(19): 3,408～428.
5Katz,Lawrence F.,and Kevin M.Murphy,"Changes in Relative Wages,1963-1987: Supply and Demand Factors." Quarterly Journal of Economics 1992,( 1 ):35～78.
6Altonji,Joseph G.,"The Demand for and Return to Education when Education Outcomes are Uncertain,"Journal of Labor Economics,1993,(11): 1,48～83.
7Grogger,Jeff and Eric Eide,"Changes in College Skills and the Rise in the College Wage Premium," Journal of Human Resources,1995,(30): 2,280～ 310.
8Neuman,Shoshana and Adrian Ziderman,"Vocational Schooling,Occupational Matching,and Labor Market Earnings in Israel," Journal of Human Resources,1990,(26): 2,256～281.
9James,C.,Hearn and Sarah,A.,Bunton,'The Effects of Students' Fields of Study on Their Earnings and Other Outcomes of Postsecondary Education',Policy Brief 01 -02,Postsecondary Education Policy Studies Center,December,2001.
10James,J.,Heckman and Xuesong,Li,'Selection Bias,Comparative Advantage and Heterogeneous Returns to Education: Evidence from China in 2000',NBER working paper 9877,July,2003.
