The Analysis of Trend of Technological Change in Iran\'s Cement Industry

In this paper we have studied the trend and bias of technological change in Iran’s cement industry by dual cost function approach. This approach is useful to estimation of factors demand structure with regard to changes of factors price and technological situation. We estimated a translog cost funct...

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Main Authors: Kazem Yavari, Nader Dashti
Format: Article
Language:fas
Published: Tarbiat Modares University 2010-03-01
Series:پژوهشهای اقتصادی
Subjects:
Online Access:http://ecor.modares.ac.ir/article-18-8749-en.pdf
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author Kazem Yavari
Nader Dashti
author_facet Kazem Yavari
Nader Dashti
author_sort Kazem Yavari
collection DOAJ
description In this paper we have studied the trend and bias of technological change in Iran’s cement industry by dual cost function approach. This approach is useful to estimation of factors demand structure with regard to changes of factors price and technological situation. We estimated a translog cost function in addition to equations system of cost share, using Seemingly Unrelated Regression Equation (SURE) approach during the period 1355-1385. The results show that the rate of technological change has been -1.12 percent during the studied years. It means that there is a decrease in rate of cost of productive units along with time. Furthermore, the results indicate that technological change has been biased towards the use of more energy.
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spelling doaj.art-eac877cc5e32403e8d60b390c3e893b52023-06-15T20:32:34ZfasTarbiat Modares Universityپژوهشهای اقتصادی1735-67682980-78322010-03-019400The Analysis of Trend of Technological Change in Iran\'s Cement IndustryKazem Yavari0Nader Dashti1 faculty of Economics, Tarbiat Modares University Student of Economics, Tarbiat Modares University In this paper we have studied the trend and bias of technological change in Iran’s cement industry by dual cost function approach. This approach is useful to estimation of factors demand structure with regard to changes of factors price and technological situation. We estimated a translog cost function in addition to equations system of cost share, using Seemingly Unrelated Regression Equation (SURE) approach during the period 1355-1385. The results show that the rate of technological change has been -1.12 percent during the studied years. It means that there is a decrease in rate of cost of productive units along with time. Furthermore, the results indicate that technological change has been biased towards the use of more energy.http://ecor.modares.ac.ir/article-18-8749-en.pdfproductivitytechnological changetranslog functionindustrycement jel classification: o33
spellingShingle Kazem Yavari
Nader Dashti
The Analysis of Trend of Technological Change in Iran\'s Cement Industry
پژوهشهای اقتصادی
productivity
technological change
translog function
industry
cement jel classification: o33
title The Analysis of Trend of Technological Change in Iran\'s Cement Industry
title_full The Analysis of Trend of Technological Change in Iran\'s Cement Industry
title_fullStr The Analysis of Trend of Technological Change in Iran\'s Cement Industry
title_full_unstemmed The Analysis of Trend of Technological Change in Iran\'s Cement Industry
title_short The Analysis of Trend of Technological Change in Iran\'s Cement Industry
title_sort analysis of trend of technological change in iran s cement industry
topic productivity
technological change
translog function
industry
cement jel classification: o33
url http://ecor.modares.ac.ir/article-18-8749-en.pdf
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