RT Journal Article SR Electronic T1 The Response of Worker Effort to Piece Rates JF Journal of Human Resources JO J Hum Resour FD University of Wisconsin Press SP 881 OP 890 DO 10.3368/jhr.XXXVIII.4.881 VO XXXVIII IS 4 A1 M. Ryan Haley YR 2003 UL http://jhr.uwpress.org/content/XXXVIII/4/881.abstract AB Using firm-level payroll data from the Midwest logging industry, I compute a worker’s productivity response to a change in piece-rate pay, an elasticity of effort, using an empirical specification developed in Paarsch and Shearer (1999). Maximum-likelihood estimation of an agency-based structural econometric model of worker choice yields elasticities ranging from 0.413 to 1.507. These estimates are smaller than, but qualitatively similar to, those reported in Paarsch and Shearer, suggesting that their model has perhaps more general applicability than their British Columbia tree-planting example.