Input Use Efficiency In The Automotive Industry In Iran, 1984-2013

This research is about the productivity and efficiency of input in the automotive industry in Iran between1984-2013. Despite the importance of the automotive sector in the non-resource sector, it has faced fluctuating productivity and output. This has been commonly attributed to restrictions in imported inputs because of economic sanctions. This study investigates if input use inefficiency might also be a contributory factor. Towards this end, the study had five specific objectives: (i) To investigate which of the three main production functions, that is, Cobb-Douglas, Constant Elasticity of Substitution or the Translog, appropriately describes the automotive industry in Iran; (ii) To estimate the output elasticity with respect to capital, labour and materials; (iii) To determine the nature of the returns to scale being experienced by the industry; (iv) To evaluate whether or not capital, labour and materials are being used efficiently, and (v) To estimate the elasticity of substitution between the three inputs

A Survey on Supply Side of Mines: a Case Study of Iran

The mining sector is one of the most important factors in so many countries like Iran to achieve sustainable development. Due to importance of this sector in Iran, this paper investigates the supply side of mines in Iran. Hence, the main objective of this study is to investigate the supply side of mining in Iran. In order to get this aim, first, the annual time series data are collected from the website of Central Bank and Statistics Center of Iran. This paper determines the elasticity of the production factors of labor and capital for mining sector in Iran covering data 1988 to 2010. The Cobb-Douglas function is used to estimate mining sector production function which involves the OLS method using the EVIEWS8 and SPSS software. According to the results of this study during the years of the study the coefficients of the natural logarithm of the real capital and the natural logarithm of the labor in Iran are 1.621488 and 2.962340, respectively and these coefficients are statistically significant at the 5% confidence level. Indeed, these coefficients show the amount of elasticity of production factors for the mining sector in Iran. Hence, if the capital in the mining sector increases one percentage then the production in this sector increases 1.621488 and while the labor in this sector increases one percentage, then the production in this sector increases 2.962340 percent