One of the most critical functions in Human Resource Management is Performance Appraisal. Organizations therefore need to implement effective Performance Appraisal systems that can lead to retention of employees as well as enhancing their productivity. This book provides unique perspectives regarding the implementation of a performance Appraisal system based on a statistical analysis of data collected from several firms in the supermarket industry. It also provides a holistic analysis of the three major components of an effective performance appraisal system. Readers shall gain invaluable insights into the theory and practice of Performance Appraisal in a competitive business environment.