RT Monograph SR 00 A1 Bonatti, Alessandro A1 Hörner, Johannes T1 Career Concerns with Exponential Learning YR 2017 FD 2017-03 VO 17-793 SP 67 K1 career concerns K1 experimentation K1 career paths K1 up-or-out K1 reputation AB This paper analyzes the impact of market structure on career concerns. Effort increases the probability that a skilled agent achieves a one-time breakthrough. Wages are based on assessed ability and on expected output. For any wage, the agent works too little, too late. Under short-term contracts, effort and wages are single-peaked with seniority, due to the strategic substitutability of effort levels at different times. Both delay and underprovision of effort worsen if effort is observable. Commitment to wages by competing firms mitigates these inefficiencies. In that case, the optimal contract features piecewise constant wages and severance pay. T2 TSE Working Paper PB TSE Working Paper PP Toulouse AV Published LK https://publications.ut-capitole.fr/id/eprint/23338/ UL http://tse-fr.eu/pub/31604