It is a widely held belief that apprenticeship training represents a net investment for training firms, the cost of which needs to be recouped after the training period. A new firm-level dataset for Switzerland reveals large variation in net costs across firms and, remarkably, negative net costs...

We use a unique data set about the future wage distribution that Swiss students expect for themselves ex-ante, suggesting that students use very little private information about their wage prospects. Expectations appear much more anchored to perceptions of actual contemporaneous market data....