This document discusses traditional pay systems, merit pay systems, and effective performance appraisal plans for merit pay. It describes how merit pay ties compensation to performance evaluations using objective and subjective metrics. An effective merit pay program requires non-discriminatory performance appraisals that limit biases, establish clear job standards, and differentiate pay based on achievement of goals. However, merit pay programs can fail if they do not accurately measure and reward performance or if other factors influence compensation decisions.