FRANK D. BEAN is the Ashbel Smith Professor of Sociology and professor of public affairs at the University of Texas at Austin. DANIEL S. HAMERMESH is Edward Everett Hall Centennial Professor of Economics at the University of Texas at Austin. He is also research associate of the National Bureau of Economic Research. CONTRIBUTORS: Frank D. Bean, Daniel S. Hamermesh, Julian R. Betts, George J. Borjas, Kristin F. Butcher, Robert W. Fairlie, Richard B. Freeman, Jeffrey T. Grogger, Caroline M. Hoxby, George E. Johnson, Linda Datcher Loury, Bruce D. Meyer, Cordelia W. Reimers, Peter H. Schuck, Marta Tienda, and Jeffrey S. Zax.