identification and classifying of affecting motivation factors in employee turnover by using topsis method in the national iranian oil products distribution company (n.i.o.p.d.c)

motivational factors involved in reduction of employee turnover were classified in oil refining and distribution company in selected cities of iran. for this purpose, we reviewed the literature and concepts of turnover. primary questionnaire was designed and distributed in statistical population to identify the effective factors involved in reduce of turn over. main factors determined by using minitab15 software and pareto charts. reliability of questionnaire measured by retesting method. in order to classify of the identified factors, topsis method was used. then second questionnaire developed to evaluation of impact of each factors in selected cities. data collected and purified to make a decision matrix. finally, effective factors classified according to weights and importance of each factor. results showed that job security, achievement motivation, and organizational commitment, respectively, have the greatest impact on reducing employees' turnover.