List of Articles Open Access Article Abstract Page Full-Text 1 - Computing the efficiency interval of decision making units (DMUs) having interval inputs and outputs with the presence of negative data M. Rostamy-Malkhalifeh F. seyed Esmaeili Open Access Article Abstract Page Full-Text 2 - Utilizing Robust Data Envelopment Analysis Model for Measuring Efficiency of Stock, A case study: Tehran Stock Exchange Pejman Peykani Emran Mohammadi Armin Jabbarzadeh Alireza Jandaghian Open Access Article Abstract Page Full-Text 3 - To Study the Effect of Combined Learning on Students' Educational Achievement in Mathematics Mahboubeh Nikandish Hadi Rezghi Shirsavar Open Access Article Abstract Page Full-Text 4 - Malmquist Productivity Index Based on Time Effect M. Vaez-Ghasemi Open Access Article Abstract Page Full-Text 5 - A Method for Target Setting with Share Data B. Rahmani Parchkolaei Z. Moghaddas Open Access Article Abstract Page Full-Text 6 - Using Neural Network to Determine Input Excesses, Output Shortfalls and Efficiency of Dmus in Russell Mode D. Modhej M. Sanei N. Shoja Open Access Article Abstract Page Full-Text 7 - An Effective Algorithm in order to solve the Capacitated Clustering Problem N. Mahmoodi Darani P. Bassiri M. Yousefikhoshbakht Open Access Article Abstract Page Full-Text 8 - A path-following feasible interior-point algorithm for mixed symmetric cone linear complementarity problems M. Zangiabadi H. Mansouri M. Pirhaji Open Access Article Abstract Page Full-Text 9 - A Primal Simplex Algorithm for Solving Linear Programming Problem with Grey Cost Coefficients S.H. Nasseri A. Yazdani D. Darvishi Salokolaei Open Access Article Abstract Page Full-Text 10 - Studying the Impact of Deferred Debts on Bank Performance by Using Data Envelopment Analysis A. Gholam Abri Open Access Article Abstract Page Full-Text 11 - Revisit ordering on L-R fuzzy numbers and its application in fuzzy mathematical programming E. Darban Jafaria R. Chameh S.H. Nasseri Open Access Article Abstract Page Full-Text 12 - Some fixed points preserver A. Taghavi R. Hosseinzadeh Open Access Article Abstract Page Full-Text 13 - A New Continuous Multi-State Reliability Model with Time Dependent Component Performance Rate M.r. Shahriari M. Sharifi S. Naser Khaki