List of Articles GMM method Open Access Article Abstract Page Full-Text 1 - The effect of social capital on income inequality in Iranian Provinces maryam lashkarizadeh yazdan naghdi soheila kaghazian Open Access Article Abstract Page Full-Text 2 - The Impact of Tension Index on Foreign Tourism: A Comparative Analysis of Member Countries of the Organization of Islamic Cooperation and Selected Developed Nations (A Characterization Approach) seyed mohammad hosseini salehi mohammad hasan fotros mohammad hosein Imani khoshkho ahmad sarlak