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...

Government policies are encouraging older workers to delay retirement, which may curb younger workers' career advancement. We study a Dutch reform that raised the retirement age by 13 months and nearly tripled employment at age 66. Using monthly linked employer-employee data, we show that...