Document Type : Research Paper


1 Department of Mathematics, Islamic Azad University, Qaemshahr, Iran

2 Department of Mathematics, Science & Research Branch, Islamic Azad Univercity, Tehran, Iran

3 Student of Mathematics, Islamic Azad University, Qaemshahr, Iran


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


Main Subjects

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