List of Articles Open Access Article Abstract Page Full-Text 1 - The Theory of Political Tariff Protection for Agricultural Sector in Developing Countries Yaser Feizabadi Open Access Article Abstract Page Full-Text 2 - Which Will Overcome? The Productivity or Risk Premium Javad Shahraki Shahram Saeedian Open Access Article Abstract Page Full-Text 3 - Consumers’ Preference for Cowpea in Nigeria Kalu Ukpai Ifegwu Joshua Olusegun Ajetomobi Open Access Article Abstract Page Full-Text 4 - Application of Linear and Non-linear Programming Model to Assess the Sustainability of Water Resources in Agricultural Patterns Seyed Abolghasem Mortazavi Reza Hezareh Sina Ahmadi Kaliji Samira Shayan Mehr Open Access Article Abstract Page Full-Text 5 - Analyzing the Effect of the Water Reduce Subsidies on GDP Seyed Mahdi Hosseyni Javad Shahraki Open Access Article Abstract Page Full-Text 6 - The Need for a Strong Public-Private Linkage in Agricultural Extension System (Case Study: Sari Township, Iran) Amir Ahmadpour Shohreh Soltani Open Access Article Abstract Page Full-Text 7 - Factors Influencing the Use of and Attitude of Using Information and Communication Technologies (ICTs) in Agricultural Extension, A Study in the Isfahan Province of Iran Zahra Haji Hashemi Gholamreza Pezeshki Rad Mohammad Chizari Open Access Article Abstract Page Full-Text 8 - Increasing the Effectiveness of the Russian Grain Market Nazarova Varvara Khrabrova Valentina Open Access Article Abstract Page Full-Text 9 - Identifying Indicators of Environmentally Sustainable Agriculture in Paddy Fields of Guilan Province Ali Mohammadi Torkashvand Mohammad Sadegh Allahyari Zahra Daghighi Masuleh