List of Articles Financial Ratio Open Access Article Abstract Page Full-Text 1 - The Ranking of Financial Efficiency of Companies Accepted in Stock Exchange of Tehran between 2013 to 2016 through Financial Ratio Approach and Using DEA Abbas Sheikh Abomasoudi Seyyed AmirHossin Mirghaderi Open Access Article Abstract Page Full-Text 2 - Evaluating the Efficiency of Two-stage Networks using Ratio Analysis Asieh sadat Hatami Morteza Shafiee Mozhdeh Rabbani Mohammad Reza Mozaffari