The authors analyze the promotion, demotion, and turnover of pitchers in baseball's minor leagues-a labor market for which exceptionally good data on performance are available-in the years 1975-88. They find that the time between a player's assignment to one league and promotion or demotion to...

Although the proportion of lawyers who are women has grown rapidly in recent years, this study presents evidence of discrimination against women in promotion to partnership in major U.S. law firms in 1969-73 and 1980. Using regression analysis and maximum likelihood estimates of a probabilistic...