Much management accounting research focuses on design of incentive com
pensation contracts. A basic assumption in these contracts is that per
formance-based incentives improve employee performance. This paper rep
orts on a field test of the multi-period incentive effects of a perfor
mance-based compensation plan on the sales of a retail establishment.
Analysis of panel data for 15 retail outlets over 66 months indicates
a sales increase when the plan is implemented, an effect that persists
and increases over time. Sales gains are significantly lower in the p
eak selling season when more temporary workers are employed.