Amemiya, Takeshi [1979], "The Estimation of a Simultaneous Equation Tobit Model," International Economic Review, vol.20 pp.169-81.

　Bell, Brian D. [1996], "Skill-Biased Technical Change and Wages: Evidence from a Longitudinal Data Set," mimeo, Nuffield College, Oxford, July.

　Bound, John and George Johnson [1992], "Changes in the Structure of Wages in the 1980's: An Evaluation of Alternative Explanations," American Economic Review, vol.82 No.3 June pp.371-392.

　Bound, John and George Johnson [1995], "What are the Causes of Rising Wage Inequality in the United States?" Economic Policy Review, 1(1), pp.9-17.

　DiNardo, John E., and Jorn-Steffen Pischke [1997], "The Returns to Computer Use Revised: Have Pencils Changed the Wage Structure Too?" Quarterly Journal of Economics, vol.CXII No.448, pp.291-303.

　Gottschalk, P. and T. M. Smeeding [1997], "Cross-National Comparisons of Earnings and Income Inequality", Journal of Economic Literature, vol.35, pp.638-687.

　Krueger, Alan B. [1993], "How Computers have changed the Wage Structure: Evidence from Microdata, 1984-1989," Quarterly Journal of Economics, vol.CVIII No.432, pp.34-60.

　Levy, Frank, and Richard J. Murnane [1996], "With What Skills Are Computers a Complement?" American Economic Review Papers and Proceedings,vol.86 No.2, pp.258-262.

Maddala, G. S. [1983], "Limited-dependent and qualitative variables in econometrics," Cambridge University Press.

Maddala, G. S. [1988], "Introduction to Econometrics," McGraw Hill.

Nelson, F. and Olson [1978], "Specification and Estimation of a simultaneous equation model with limited dependent variables," International Economic Review, 19 pp.695-705.

　Smith, Richard J. and Richard W. Blundell [1986], "An Exogeneity test for a simultaneous equation tobit model with an application to labor supply," Econometrica, vol.54 No.3 pp.679-685.

経済企画庁編 [1996],『平成8年版　国民生活白書』.

総理府[1995]『科学技術と社会に関する世論調査』.

労働省編 [1997],『平成9年版　労働白書』.

清水方子[1998]「情報化と賃金格差−米国の実証研究のサ−ベイー」『郵政研究所月報』115号pp.164-172.

清水方子[1998]「情報化と労働市場」『郵政研究所月報』121号pp.127-137.

リクルート リサーチ編 [1998], 『リクルート版労働白書 works report '98』.

樋口美雄[1997] 『労働経済学』東洋経済新報社.