List of Articles Open Access Article Abstract Page Full-Text 1 - Common weights determination in data envelopment analysis Alireza Amirteimoori Sohrab Kordrostami Open Access Article Abstract Page Full-Text 2 - Using lexicographic parametric programming for identifying efficient hyperpalnes in DEA Farhad Hosseinzadeh Lotfi F. Rezai Balf A. Taghavi Open Access Article Abstract Page Full-Text 3 - Important Issues in Multiple Response Optimization Mohammad Taleghani Open Access Article Abstract Page Full-Text 4 - The Application of Data Envelopment Analysis Methodology to Improve the Benchmarking Process in the EFQM Business Model K. Shahroudi