In this study (N = 16,001), the predictors of productivity (i.e., work performance)were investigated with A Shortened Stress Evaluation Tool (E. B. Faragher, C. L. Cooper, & S. Cartwright, 2004), which incorporates individual work stressors, stress outcomes (physical and psychological well-being), and commitment (both to and from an organization). Psychological well-being, commitment from the organization to the employee, and resources were found to be predictive. Physical health, individual work stressors (with the exception of resources), and commitment from the employee to the organization were not identified as important. The indings are discussed with reference to both previous and future research. The large sample size and broad range of occupations included suggest the findings are generalizable to other employee groupings. Implications for both stress and management theory are discussed.