This study investigates the performance components of competitiveness in the world market, with the emphasis on Iran economy. We used 168 countries data and information included underdeveloped, developing and developed countries during the years of 2011- 2014. The results indicate that the competitiveness parameters have a positive and significant effect on the indicator we have studied. According to the World Economic Forum, Annual Report 2013-2014 states that Switzerland, Singapore, Finland, Germany, the United States, Sweden, Hong Kong, the Netherlands, Japan and the UK are top 10 competitive economies in the world. In this regard, the best ranking of the indicators for the Iran is the market size with the rank of 19 and the value of this index is 5.14, which indicates the capacity and potential of Iran.