The provided assignment content explores the theoretical study and comparison of literature on expatriate performance appraisal. The selected articles discuss various aspects of employee motivation, job satisfaction, and organizational performance. The content highlights the importance of performance appraisal in improving employee productivity and motivation. Additionally, it touches upon the role of self-theories, classical motivation theories, and knowledge management in understanding expatriate performance. Overall, the assignment aims to provide a comprehensive overview of the literature on expatriate performance appraisal.