Rouse, C. 1997 Private school vouchers and student achievement: An evaluation of the Milwaukee Parental Choice program. Working paper, National Bureau of Economic Research.

Smith, J., and F.Welch 1989 Black economic progress since Myrdal. Journal of Economic Literature 27(June):519– 564.

Trejo, S. 1997 Relative earnings of Mexican-Americans. Journal of Political Economy 105(December):1235–1268.

Viscusi, W. 1986 Market incentives for criminal behavior. In The Black Youth Employment Crisis, R. Freeman and H.Holzer, eds. Chicago: University of Chicago Press.

Waldinger, R. 1996 Still the Promised City? African-Americans and Immigrants in Post-Industrial New York. Cambridge, Mass.: Harvard University Press.

Zax, J., and J.Kain 1996 Relocating to the suburbs: Do firms leave their Black employees behind? Journal of Labor Economics 14(July):472–504.