TY - JOUR AU - Charness,Gary AU - Kuhn,Peter TI - Pay Inequality, Pay Secrecy, and Effort: Theory and Evidence JF - National Bureau of Economic Research Working Paper Series VL - No. 11786 PY - 2005 Y2 - November 2005 UR - http://www.nber.org/papers/w11786 L1 - http://www.nber.org/papers/w11786.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 AB - We study worker and firm behavior in an efficiency-wage environment where co-workers' wages may potentially influence a worker's effort. Theoretically, we show that an increase in workers' responsiveness to co-workers' wages should lead profit-maximizing firms to compress wages under quite general conditions. Our laboratory experiments, on the other hand, show that --while workers' effort choices are highly sensitive to their own wages-- effort is not affected by co-workers' wages. As a consequence, even though firms in our experiment tended to compress wages when wages became public information, this did not raise their profits. Our experimental evidence therefore provides little support for the notion that inter-worker equity concerns can make wage compression, or wage secrecy, a profit-maximizing policy. ER -