List of Articles DEA-R Open Access Article Abstract Page Full-Text 1 - Efficiency analysis in multi-stage network DEA-R models Mohammad Reza Mozaffari masoud Sanei josef jablonsky Open Access Article Abstract Page Full-Text 2 - An extended of multiple criteria data envelopment analysis models for ratio data Javad Gerami Open Access Article Abstract Page Full-Text 3 - Evaluation of research projects based on a mix model with fuzzy DEA-RA Narjes AbaeiJabri Mohammad Reza Mozaffari Open Access Article Abstract Page Full-Text 4 - Basic ratio-based DEA models M.R. Mozaffari J. Gerami Open Access Article Abstract Page Full-Text 5 - Prioritizing Contractors Selection Using DEA-R and AHP in Iranian Oil Pipelines and Telecommunication Company N.A. Ashoori M.R. Mozaffari Open Access Article Abstract Page Full-Text 6 - Scale Efficiency in DEA and DEA-R with Weight Restriction M. Nazari M.R. Mozaffari J. Gerami Open Access Article Abstract Page Full-Text 7 - The relationship between Neural Networks and DEA-R (Case Study: Companies Stock Exchange) Maryam Eslamshoar Mohammad Reza Mozaffari Open Access Article Abstract Page Full-Text 8 - Estimating the Efficient Portfolio in Non-Radial DEA and DEA-R Models Forod Najafi Mohammad Reza Mozaffari