List of Articles Open Access Article Abstract Page Full-Text 1 - Investigating the Factors Affecting Foreign Direct Investment Involvement with Emphasis on Institutional and Structural Variables in OPEC Selected Countries Azin Sadat Ostadramezan Maryam Bazraei Mojtaba Karimi Open Access Article Abstract Page Full-Text 2 - The Impact of Country Risks Index on Commercial Insurance Demand (Case Study: MENA Countries) Ali Dehghani Niloufar Sheikh Rezaie Open Access Article Abstract Page Full-Text 3 - The Impact of Tourism Development on Iran's Economy Bahram Shakouri Soheila Khoshnevis Yazdi Niloofar Nateghian Open Access Article Abstract Page Full-Text 4 - A Review of the Effect of the Life Cycle on Tax Avoidance of Firms Ghodrat Allah Taleb Nia Hossein Rajabdorri Fatemeh Dehghan Open Access Article Abstract Page Full-Text 5 - The Effect of Unusual Operating Cash Flows on Earnings Sustainability in the Listed Companies of Tehran Stock Exchange Hossien fakhari Javad Mohammadi Mohsen Hasanataj Kordi Open Access Article Abstract Page Full-Text 6 - Debt Maturity Structure and Accounting Conservatism with Emphasis on the Role of Agency Costs mohammadsadegh farshchi Younes Badavar Nahandi Open Access Article Abstract Page Full-Text 7 - Predicting the Factors Affecting the Risk of Future Stock Price Decline Based on Circuit Radius Neural Network Reza Ataeizadeh Roya Darabi