List of Articles بهرهوری صادرات Open Access Article Abstract Page Full-Text 1 - Trade Specialization and Export Productivity in OPEC: An Emphasis on Iran’s Position Mohsen Pourebadollahan Covich Nasim Mehin Aslaninia Fakhri Sadat Mohseni Zonuzi Open Access Article Abstract Page Full-Text 2 - The Model of Export Efficiency through New Entry Strategies Based on a Resource-Based View Mojtaba Ramazani reza nasrollahi saeedlo