درخت حوزه‌های تخصصی

The aim of this study was to identify the challenges of the business model of small and medium enterprises in the path of digital transformation during the Covid 19 epidemic. The research is applied in terms of purpose and descriptive-survey in terms of method. For this purpose, first, using the literature review, the challenges of the business model in the path of digital evolution during the Covet 19 epidemic have been identified, then in order to sift and consensus of the components extracted from the literature, the Delphi method was used in two rounds. The Delphi panel consisted of 30 experts in the field of research who were selected by purposive sampling. In the next step, in order to ensure the factor structure and validity of the structures, and to fit the model using the field method and distribution of questionnaires, a survey of senior managers of small and medium companies in Tehran was conducted. The sample size was determined using the sample size method required for modeling structural equations, 200 people, and finally 162 questionnaires were selected using a simple random method. Smart PLS software was used to analyze the data. Findings indicate 23 sub-components in 6 main components of change challenges, market challenges, financial, organizational, individual and environmental. The results also showed that the factor of "lack of necessary infrastructure" has the highest priority,"lack of government support during the Pandemic" and "lack of intangible resources(experience,knowledge,flexible manpower) for digital transformation" are in the next ranks.

The purpose of this paper is to explore the impact of industry competitive intensity on brand performance that marketing capabilities and market-focused learning and organizational innovation have the mediator role. Survey of top firms of Tehran Stock Exchange for the last 4 years is explored. We used questionnaire for gathering data and 77 firms of 92 responded to the questionnaire . In order to test the validity of the questionnaire Dillon - Goldstein (cρ =0/70) coefficient used. AVE was used to assess the validity of indicators that show the validity of the questionnaire have been favorable .This study analyzed the data in two levels of descriptive and inferential statistics using Smart PLS ,Spss18, Excel2007. To calculate the significant path coefficient and to gain the test statistic T we used Astrab boot ( via insertion of the sampling method ). The results show that industry competitive intensity has a positive and significant effect on brand performance and all hypotheses were confirmed . The mediation effect of marketing capabilities and market-focused learning and organizational innovation was approved too.