The interval Malmquist productivity index in DEA

Subject Areas : Data Envelopment Analysis

F. Rezai Balf ¹ , F. Hosseinzadeh Lotfi ² , M. Alizadeh Afrouzi ³

1 - Department of Mathematics, Islamic Azad University, Qaemshahr, Iran
2 - Department of Mathematics, Science & Research Branch, Islamic AzadUnivercity, Tehran, Iran
3 - Student of Mathematics, Islamic Azad University, Qaemshahr, Iran

Received: 2010-01-25 Accepted : 2010-02-25 Published : 2010-03-01

Keywords: DEA, interval efficiency, Malmquist Productivity Index,

Abstract :

One of the most popular approaches to measuring productivity changes is basedon using Malmquist productivity indexes. In this paper we propose a method forobtaining interval Malmquist productivity index (IMPI). The classical DEAmodels have been before used for measuring the Malmquist productivity index.The current article extends DEA models for measuring the interval Malmquistproductivity index by utilize the bounded DEA models instead of classical DEAmodels.

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