List of Articles بازار نفت خام Open Access Article Abstract Page Full-Text 1 - Investigation of Weak Form Efficiency Hypothesis in Both High and Low Volatility Regimes of OPEC Crude Oil Market mahmood mohammadi alamuti mohammad reza haddadi younes nademi Open Access Article Abstract Page Full-Text 2 - Feasibility study of the pricing of crude oil by OPEC and OECD countries using game theory in the form of a win– win Reza Fahimi Doab Ahmad Sabahi M. H. Mahdavi Adeli Ahmad Seyfi