Investigating the Effect and Ranking of the Effective Index on Barriers to Entry of Firms in Iran's Industry Sector (Using AHP Fuzzy Approach)

Barriers to entry, as the one of structural variables of market, has an important role in forming the market organization. Barriers to entry are important that is why it can drive market structure to the monopoly. Noting that, identifying the barriers to entry of industry and developing environment of the competitive businesses in order to more growth are necessary, so there is a major need of empirical studies. Hence, in this study after investigating the resources and doing special interviews, using AHP Fuzzy approach and industrial economy theory, the measures have been defined and effective index of barriers to entry of firms to industry have been identified, and it have been tried to identifying and ranking the effective factors of firm’s entry to industry using Analytically Hierarchy Process. Data have been collected using questionnaire, and sample of the study have been selected among the economic managers and activists of industries and scientific members of related majors with country’s industries. The results of the study show that the most important effective index in creation of barrier to entry in industry sector is concentration index by weight of. 0528. And between the major measures, the number of firms has the most effect in creation of barrier to entry in industry sector. Hence, based on these results, it is recommended to make a context in order to reduction of concentration in market and increasing the number of firms and provide uniform distribution of market between firms and also the expansion of markets and outgrow their size to be on the agenda of competitive policy by providing a context for the presence of newcomer firms through the financial facilities of licenses and also limited and scheduled support of firms that are entering the market.