List of Articles Open Access Article Abstract Page Full-Text 1 - Designing -the hierarchical fuzzy expert system in order to human risk assessment with emphasis on improve productivity zahra sofi Mohammad Attai Seyyed Mahdi Alvani Keyvan Shahgoliyan Open Access Article Abstract Page Full-Text 2 - Explaining the role of the concept of touch in the buying behavior of customers of physical and online stores meisam aminzadeh vahedi Seyed Hamid khodadad Hosseini Beitollah Akbari Moghadam Open Access Article Abstract Page Full-Text 3 - Designing and explaining the pricing model in the four-level closed loop supply chain considering the uncertainty in the paper industry Mahdi Alizadeh Beromi Mohammad Ali Afshar Kazemi Mohammadali Keramati abbas Toloie ashlaghi Open Access Article Abstract Page Full-Text 4 - Identifying and Ranking the Components of Human Resource Retention in knowledge-based Organizations based on Shannon Entropy Majid Nodeh Farahani Mir Ali Seyed Naghavi Javad Mehrabi Open Access Article Abstract Page Full-Text 5 - Designing a Model of Financing Entrepreneurial Strategies of Knowledge-Based Companies in Iran zahra yari lichaeyi Gholamhossein Hosseininia davoud samari Open Access Article Abstract Page Full-Text 6 - Designing and testing a model of ethical antecedents affecting on reduce administrative anti -health behaviors in educational system Soqra Mohammadi Hamed Rahmani Gholamreza Memarzadeh Tehran Open Access Article Abstract Page Full-Text 7 - Identification and ranking of dimensions and factors of the business model for multi-sided platforms for cultural product production with a social manufacturing approach vahid sharifi Gholamreza Hashemzadeh Seyed Alireza Derakhshan Ashraf Shahmansouri, Abotorab Alirezaee Open Access Article Abstract Page Full-Text 8 - Presenting the model canvas of small and medium businesses (SMEs) based on the value creation network with a dynamic business modeling approach Mohsen Mazloumi Jalal Haghighat Monfared Mohammad Reza Kabaranzad Open Access Article Abstract Page Full-Text 9 - Investment as an opportunity cost of dividend messaging Amir mohammadzadeh alireza yousefnejad mahmood nasiri Open Access Article Abstract Page Full-Text 10 - Development of academic entrepreneurship ecosystem based on digital technology mostafa maboodi tamai Ali Badizadeh salman nazari shikohe Open Access Article Abstract Page Full-Text 11 - Presenting a data mining model based on sustainable development index in the urban management of Tehran metropolis affected by the covid-19 epidemic. Abbas Maleki sadegh abedi Alireza Irajpoor Open Access Article Abstract Page Full-Text 12 - Drawing and analyzing the synonym map of digital entrepreneurship in art universities Soheila panahzadeh Soheila Khishtandar Farhad Nejhad Haji Ali Irani