Although early human capital theory recognized the relevance of workers' experience, its focus was on education and formal training. Recent studies find that much of the performance of newly hired workers is driven by learning by doing or learning from peers or supervisors in the workplace....

This paper provides more insight into the relevance of the assumption of human capital theory that the productivity of job-related training is driven by the improvement of workers' skills. We analyse the extent to which training and informal learning on the job are related to employee skill...