Jarrell, Stephen B., and T. D. Stanley. 2004. "Declining Bias and Gender Wage Discrimination? A Meta-Regression Analysis." Journal of Human Resources 39(3): 828-838.

This paper extends, tests, and revises a previous meta-regression analysis of the gender wage gap (Stanley and Jarrell 1998). We find that there remains a strong, though dampened, tendency for discrimination estimates to fall, and male researchers still report significantly larger amounts of wage discrimination against women. This extensive research base, containing 104 estimates, suggests that there is less need to correct for selection bias--an indirect sign of lessened discrimination. There is evidence that gender research is changing and improving. Although gender wage discrimination has lessened, the research base still finds a significant gender wage inequality.

Stephen B. Jarrell is a professor of management and international business at Western Carolina University. T. D. Stanley is a professor of economics and business at Hendrix College. The authors would like to acknowledge the helpful suggestions of two anonymous referees, Thomas Buford of Hendrix College for his competent research assistance; Brenda Moore of Hunter Library at Western Carolina University for her assistance in obtaining dissertations and other manuscripts; finally, Western Carolina University’s Scholarly Development Leave Program for providing time to work on this project. The data used in this article can be obtained beginning January 2005 through December 2008 from Stephen Jarrell, College of Business, Western Carolina University, Cullowhee, NC 28723.