This paper analyzes data from Project STAR, an experiment in which 11,600 Tennessee kindergarten students and teachers were randomly assigned to one of three types of classes beginning in the 1985-86 school year: small classes (13-17 students), regular-size classes (22-25 students) teacher's...

The average wage differential between black and white men fell from 40 percent in 1960 to 25 percent in 1980. Much of this convergence is attributable to a relative increase in the rate of return to schooling among black workers. It is widely argued that the growth in the relative return to...