7Pareto V. Cours d'Economique Politique[M]. Macmillan Press, London, 1897 (2).
8Caselli F,Ventura J. A Representative consumer theory of distributionI-J]. American Economic Review, 2000 (4) : 909-926.
9Acemoglu D. Why do new technologies complement skills? Directed technical change and wage inequality[J':. Quarterly Journal of Economics, 1998(4) : 1055-1089.
10Kiley M. The Supply of Skilled Labor and Skill-biased Technological Progress l-J:. Economics Journal, 1998 (109) :708-724.