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Barry Hirsch received his Ph.D. in 1977 from the University of Virginia and is now professor of Economics at the Florida State University. His research has focused on the determination of wages and employment in labour markets and on the role of labour unions. He is author of Labor Unions and the Economic Performance of Firms, co-author with John Addison of The Economic Analysis of Unions: New Approaches and Evidence, and co-author with David Macpherson of an annual source book, Union Membership and Earnings Data Book: Compilation from the Current Population Survey published by the Bureau of National Affairs. Professor Hirsch also publishes regularly in leading journals dealing with labour economics and industrial relations. Recent work includes the study of wages and unions in regulated and deregulated markets (airlines, trucking, and the postal service); unions and the effects upon incentive from workers' compensation; unions and the distribution of wages and skills; and the determination of wages in health care labour markets. Professor Hirsch serves on the editorial boards of Industrial Relations, the Journal of Labor Research, and the Southern Economic Journal.