How worker productivity evolves with tenure and experience is central to economics, shaping, for example, life …-the-job tenure from total experience in determining productivity growth. Several findings emerge concerning the initial period on the …-by-period. (2) Previous experience is a substitute, but a far less than perfect one, for on-the-job tenure. (3) There is substantial …

is 24 to 29%, which is higher than the return to experience. Furthermore, we estimate a 35% return to ten years of tenure … in the formal sector, with no significant return to tenure in the informal sector. The difference in the sources of wage …