The relationship between social interdependence and orientation toward life and work was investigated in this study. Participants were 135 dyads of Chinese employees from 4 companies. Cooperativeness was significantly related to positive indexes of orientation toward life and work, competitiveness was related to a positive orientation toward life, and a predisposition to act individualistically was related to general measures but very few of the work-specific measures. Coworkers' ratings indicate that cooperators were perceived as being very positive and productive employees, while competitors and individualists were perceived negatively in terms of work productivity and relationships with others. The discrepancy between self-perceptions and perceptions of coworkers indicate that competitors especially may have a self-beneficial delusion about the effectiveness of their behavior.