“Is it really worth spending that much money on training?” is question that many a human resource practitioner has had to grapple with. This report is a scientific study by the University of Cornell addressing questions such as: How does the type of training vary across individuals and organizations? Which has more impact: on-the-job training or off-the-job training? What is the impact of different types of employer training on the productivity of individuals and work groups? What is the right amount to invest in training?