TY - JOUR AU - Charness,Gary AU - Kuhn,Peter AU - Villeval,Marie-Claire TI - Competition and the Ratchet Effect JF - National Bureau of Economic Research Working Paper Series VL - No. 16325 PY - 2010 Y2 - September 2010 UR - http://www.nber.org/papers/w16325 L1 - http://www.nber.org/papers/w16325.pdf N1 - Author contact info: Gary Charness UC, Santa Barbara E-Mail: charness@econ.ucsb.edu Peter J. Kuhn Department of Economics University of California, Santa Barbara 2127 North Hall Santa Barbara, CA 93106 Tel: 805/893-3666 Fax: 805/893-8830 E-Mail: pjkuhn@econ.ucsb.edu Marie-Claire Villeval GATE, CNRS, University of Lyon, 93, Chemin de Mouilles, 69130, Ecully, France E-Mail: villeval@gate.cnrs.fr AB - In labor markets, the ratchet effect refers to a situation where workers subject to performance pay choose to restrict their output, because they rationally anticipate that firms will respond to higher output levels by raising output requirements or cutting pay. We model this effect as a multi-period principal-agent problem with hidden information, and study its robustness to labor market competition both theoretically and experimentally. Consistent with our theoretical model, we observe substantial ratchet effects in the absence of competition, which is nearly eliminated when competition is introduced; this is true regardless of whether market conditions favor firms or workers. ER -