TY - JOUR T1 - Measuring the Efficiency, Productivity and Ranking of the Iranian Gas Refineries Based on the Two-Stage Data Envelopment Analysis TT - اندازه‌گیری کارآیی، بهره وری و رتبه بندی پالایشگاه های گاز ایران با استفاده از تکنیک تحلیل پوششی داده های دومرحله ای JF - JAMLU JO - JAMLU VL - 15 IS - 2 UR - http://jamlu.liau.ac.ir/article-1-1483-en.html Y1 - 2018 SP - 135 EP - 156 KW - Efficiency KW - Two-stage DEA KW - Gas Refinery KW - Malmquist measure N2 - Gas refineries are one of the pivotal industries, have crucial role in economic development. Because of such an importance, there can be found a rich literature in evaluating and ranking these organizations. Data envelopment analysis is a popular non-parametric technique received much attention in the mentioned area. The current research addresses to evaluate 11 gas refineries in Iran between 1392-1394 using two-stage CCR based data envelopment analysis technique. In this regard, numerical results show that some of the refineries lie on the efficient frontier; Hence, Anderson-Peterson is employed to rank the efficient ones and phase 0 and 10 ASALUYE refinery is introduced as the strong efficient DMU. Malmquist measure is also applied to investigate the progression/ retrogression of the DMUs. M3 ER -