Four (out of eight) HRM practices are significantly and positively associated with both dependent variables (PSM and perceived organizational efficiency): fairness, job enrichment, individual appraisal, and professional development. These HRM practices are likely to support PSM and to forge a positive vision of the organizational performance within the public employee population. One of these HRM practices may be considered as an extrinsic work motivator (fairness), whereas three of them are designed to develop intrinsic work incentives (job enrichment, individual appraisal, and professional development).