The analysis of productivity in energy intensive Iranian industries, based on the Data Envelopment Analysis

This paper calculates the total factor productivity changes and its components for three energy intensive industries in IRAN during the period of 1363-1383, based on a DEA model. Moreover, we estimate a regression equation for technical efficiency of energy and other input intensities. Attained results represent, that these industries have been the least performance in average technical efficiency during the second development program. There is, the un-metallic mineral industry and the metal industry have been the best and the last performance respectively. Indeed, management inefficiency was the main source of comparative inefficiency. The estimation results of regression emphasize on high magnitude of energy intensity to explanation of technical efficiency changes. The Malmequist index results describe that the total productivity in the first and third development programs was increased and have been the main cause of the technical changes.