use easily observable characteristics such as years of education to 'statistically discriminate' among workers. The pure … credential value of education will depend on how quickly firms learn. To obtain information on employer learning, we work with a … education. The time path of the coefficient on the unobservable productivity variable provides information about the rate at …

Politicians, the media, and the public express concern that immigrants depress wages by competing with native workers … countries have found no effect on wages, on average, and only modest effects on wage differentials between more and less … educated immigrant and native workers. Native workers' wages have been insulated by differences in skills, adjustments in local …

Workers participating in firm-sponsored training receive higher wages as a result. But given that firms pay the …

wages reflect this, with lower pay for greater uncertainty. We use the dispersion of exam grades within a field of education … as an indicator of the unobserved heterogeneity that employers face. We find solid evidence that starting wages are lower …

, wages, and the inequality of wages within firms. While the average amount spent on employer-provided training is low in … IT-courses. We find a significant relationship between training and wages, the coefficient is about 0.05. We find no … significant effect of training on the inequality of wages within firms. …