This paper analyzes new data on job qualifications and training. Betwe
en 1983 and 1991, the share of workers reporting skill-improvement tra
ining on their jobs increased as did the wage premium for this trainin
g. Even in 1991, however, 58 percent of al workers reported no trainin
g on their jobs, and 44 percent reported needing no special qualificat
ions to obtain their jobs. Training rates are especially low for young
and less-educated workers. Skill demands appear to have shifted towar
d general and cognitive skills-best taught in formal training programs
and schools-and away from specific and manual skills acquired through
informal on-the-job training.