Competitiveness is a multi-dimensional concept that organizations must inevitably strengthen themselves in all its dimensions to develop competitive power. Competitiveness is effective on the success of an enterprise in a worldwide level. Accordingly, the purpose of this research was to design a communicational model between the competitiveness types of small and medium industries in Iran. Regarding the research purpose, the study is applied, which is conducted based on the descriptive-causal method. The statistical population of this research in identifying factors affecting competitiveness includes all small and medium enterprises in Qazvin province, Iran. In order to design a model for competitiveness, the experts familiar with the issue of competitiveness were used. Accordingly, two questionnaires were used in this research to collect data. This questionnaire is distributed among members of the statistical sample after the determination of validity and reliability. The exploratory factor analysis, the Interpretative-Structural Modeling -ISM-, and Structural-Equation -Path- Model -SEM- have been used to analyze the data. The results findings indicated that among the factors influencing competitiveness, the competitiveness factors related to firm management and the competitiveness factors related to suppliers and resources have the most impact on the competitiveness of small and medium firms. The results -findings- also showed that the competitiveness factors related to demand and customers are recognized as an absolutely influential component. The results of the Structural-Equation -Path- Model -SEM- have evaluated the path coefficients significance. According to the research’s findings, it can be said that the factors affecting the competitiveness related to firm management and competitive factors related to suppliers and resources should be firstly strengthened in order to make small and medium industries more competitiveness and stimulate resources.

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