Faculty of Entrepreneurship, University of Tehran Journal of Entrepreneurship Development 2008-2266 10 1 2017 05 22 The Effect of Internal and External Social Capital on Radical Product Innovation in the Study of Innovative Companies in Tehran International Fair The Effect of Internal and External Social Capital on Radical Product Innovation in the Study of Innovative Companies in Tehran International Fair 141 159 62304 10.22059/jed.2017.62304 FA Esmaeil Shahtahmasbi Adjunct Professor, Shahid Beheshti University, Commercial Management Department Mohamad Rahim Esfidani Assistant Professor, Tehran University, Management Department Seyed Saeed Ghavam Shahidi Master of Business Administration in Marketing, Tehran University Journal Article 2015 07 06 Managers try to make efficient use of their capital to create competitive advantage, innovation and maintain their position in the market. One of the most important tools for achieving this goal is to strengthen and enhance the social capital in order to achieve radical innovation and to create a competitive advantage. This study is "The Impact of internal and external social capital at the same time the fundamental innovation" on the innovative and technological organizations. Therefore, after studying the literature, various aspects of social capital and radical innovation were identified and after the survey of experts, questionnaire prepared and distributed and collected from the study population of 113 companies and 90 questionnaires were completely done. To analyze the data both descriptive and inferential statistics were used. To describe the variables, SPSS 16 & Smart Pls.2.M3 software were used. The result indicates the positive impact of internal and external social capital on radical innovation. It was also found that the knowledge acquisition also has a positive effect on innovation. Also, the impact of the external relational social capital on the relationship between knowledge acquisition and radical innovation was negative. Absorptive capacity and cultural barriers do not affect the relationship between knowledge acquisition and radical innovation. Managers try to make efficient use of their capital to create competitive advantage, innovation and maintain their position in the market. One of the most important tools for achieving this goal is to strengthen and enhance the social capital in order to achieve radical innovation and to create a competitive advantage. This study is "The Impact of internal and external social capital at the same time the fundamental innovation" on the innovative and technological organizations. Therefore, after studying the literature, various aspects of social capital and radical innovation were identified and after the survey of experts, questionnaire prepared and distributed and collected from the study population of 113 companies and 90 questionnaires were completely done. To analyze the data both descriptive and inferential statistics were used. To describe the variables, SPSS 16 & Smart Pls.2.M3 software were used. The result indicates the positive impact of internal and external social capital on radical innovation. It was also found that the knowledge acquisition also has a positive effect on innovation. Also, the impact of the external relational social capital on the relationship between knowledge acquisition and radical innovation was negative. Absorptive capacity and cultural barriers do not affect the relationship between knowledge acquisition and radical innovation. https://jed.ut.ac.ir/article_62304_94e3463a39fabed880436802558f665a.pdf