We propose a theory that emphasizes the role of managers for the production and allocation of human capital in firms. Managers invest time to train junior employees, and acquire information about the juniors' abilities that is valuable for job assignments. This dual role of managers matters...

The emergence of online labor markets calls the validity of traditional career models into question. Given the volatility and digital nature of this environment, short-term employment relationships and heterogeneity of workers, employers and tasks in these markets, it is unclear how careers...