S Ghobadi - Department of Applied Mathematics, Islamic Azad University, Khomeinishahr Branch, Isfahan, Iran.
G.R. Jahanshahloo - Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran, Iran
F. Hosseinzadeh Lotfi - Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran, Iran
M. Rostamy- Malkhalifeh - Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran, Iran

The present paper deals with the inverse Data Envelopment Analysis. Estimation of input and output levels are investigated. Necessary and sufficient conditions for input and output estimation are introduced based on pareto solutions of multiple-objective linear programming.

Data Envelopment Analysis (DEA); Inverse DEA; Pareto Solution; Multiple Objective Linear Programming(MOLP); Enhanced Russell Measure (ERM)