Simultaneous estimation of demand and supply functions & production and consumption projection of corrugated board in Iran

Corrugated board is considered as a valuable community for packaging at both international and domestic markets. Therefore for the development of corrugated board industry in Iran and to understand the variation in demand for this product, it's necessary to identify the consumption and prod...

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Autores principales:	Amir Tavakkoli, Ajang Tajdini, Mehran Roohnia, Ahmad Jahan latibari
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2011
Materias:	Simultaneous corrugated board supply demand projection Iran Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/cfc1ab9918564c39b6e8e913326d968e
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spelling	oai:doaj.org-article:cfc1ab9918564c39b6e8e913326d968e2021-12-02T11:55:25ZSimultaneous estimation of demand and supply functions & production and consumption projection of corrugated board in Iran1735-09132383-112X10.22092/ijwpr.2011.117184https://doaj.org/article/cfc1ab9918564c39b6e8e913326d968e2011-06-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_117184_045cc4da4368b635429e2f41fde9491f.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XCorrugated board is considered as a valuable community for packaging at both international and domestic markets. Therefore for the development of corrugated board industry in Iran and to understand the variation in demand for this product, it's necessary to identify the consumption and production patterns as well as the most important and effective variables influencing it's status. Then the demand & supply for corrugated board can be forecasted. In this study, the dynamic econometric model has been used to demonstrate simultaneous relationship between supply and demand. Coefficients of the model were estimated using 3sls method with the time series data from 1981 to 2007. The results indicated that in the demand function, intercept, price, GNP in previous period, population, CPI, industrial added value(Iav), production index of large-scale industries(PILSI) and the war dummy variables are significant at 0.05 level. In the supply function, intercept, production quantity in previous period, inflation rate, corrugated board price-raw material price ratio in previous period, import quantity in previous period, cost price all in previous period and subsidy dummy variables are significant at 0.05 level. Results indicate that the mentioned variables influence consumption and production, simultaneously. The results of projection also demonstrate that corrugated board production & consumption will increase into 2012.Amir TavakkoliAjang TajdiniMehran RoohniaAhmad Jahan latibariRegional Information Center for Science and Technology (RICeST)articleSimultaneouscorrugated boardsupplydemandprojectionIranForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 26, Iss 2, Pp 256-270 (2011)
institution	DOAJ
collection	DOAJ
language	FA
topic	Simultaneous corrugated board supply demand projection Iran Forestry SD1-669.5
spellingShingle	Simultaneous corrugated board supply demand projection Iran Forestry SD1-669.5 Amir Tavakkoli Ajang Tajdini Mehran Roohnia Ahmad Jahan latibari Simultaneous estimation of demand and supply functions & production and consumption projection of corrugated board in Iran
description	Corrugated board is considered as a valuable community for packaging at both international and domestic markets. Therefore for the development of corrugated board industry in Iran and to understand the variation in demand for this product, it's necessary to identify the consumption and production patterns as well as the most important and effective variables influencing it's status. Then the demand & supply for corrugated board can be forecasted. In this study, the dynamic econometric model has been used to demonstrate simultaneous relationship between supply and demand. Coefficients of the model were estimated using 3sls method with the time series data from 1981 to 2007. The results indicated that in the demand function, intercept, price, GNP in previous period, population, CPI, industrial added value(Iav), production index of large-scale industries(PILSI) and the war dummy variables are significant at 0.05 level. In the supply function, intercept, production quantity in previous period, inflation rate, corrugated board price-raw material price ratio in previous period, import quantity in previous period, cost price all in previous period and subsidy dummy variables are significant at 0.05 level. Results indicate that the mentioned variables influence consumption and production, simultaneously. The results of projection also demonstrate that corrugated board production & consumption will increase into 2012.
format	article
author	Amir Tavakkoli Ajang Tajdini Mehran Roohnia Ahmad Jahan latibari
author_facet	Amir Tavakkoli Ajang Tajdini Mehran Roohnia Ahmad Jahan latibari
author_sort	Amir Tavakkoli
title	Simultaneous estimation of demand and supply functions & production and consumption projection of corrugated board in Iran
title_short	Simultaneous estimation of demand and supply functions & production and consumption projection of corrugated board in Iran
title_full	Simultaneous estimation of demand and supply functions & production and consumption projection of corrugated board in Iran
title_fullStr	Simultaneous estimation of demand and supply functions & production and consumption projection of corrugated board in Iran
title_full_unstemmed	Simultaneous estimation of demand and supply functions & production and consumption projection of corrugated board in Iran
title_sort	simultaneous estimation of demand and supply functions & production and consumption projection of corrugated board in iran
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2011
url	https://doaj.org/article/cfc1ab9918564c39b6e8e913326d968e
work_keys_str_mv	AT amirtavakkoli simultaneousestimationofdemandandsupplyfunctionsproductionandconsumptionprojectionofcorrugatedboardiniran AT ajangtajdini simultaneousestimationofdemandandsupplyfunctionsproductionandconsumptionprojectionofcorrugatedboardiniran AT mehranroohnia simultaneousestimationofdemandandsupplyfunctionsproductionandconsumptionprojectionofcorrugatedboardiniran AT ahmadjahanlatibari simultaneousestimationofdemandandsupplyfunctionsproductionandconsumptionprojectionofcorrugatedboardiniran
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Simultaneous estimation of demand and supply functions & production and consumption projection of corrugated board in Iran

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