List of Articles Cost efficiency Open Access Article Abstract Page Full-Text 1 - Allocation efficiency in network DEA S. Banihashemi G. Tohidi Open Access Article Abstract Page Full-Text 2 - Inverse Data Envelopment Analysis to Estimate Inputs with Triangular Fuzzy Numbers Mohammad Taghi Yahyapour-Shikhzahedi sohrab kordrostami S Edalatpanah Alireza Amirteimoori Open Access Article Abstract Page Full-Text 3 - Inverse network DEA incorporating cost efficiency with fuzzy data: an application to Petrochemical equipment industries Mahsa Hamidi Najmeh Malek Mohammadi Shabnam Razavyan Rahele Nouraei