Identifying the position of Petrochemical Industry in Iran Economy by Using Eigenvector

This article tries to identify the forward and backward linkages of Petrochemical sector using conventional and improved Chenry-Vatanabe, Rasmussen and Eigenvector methods. It relies on Eigenvector method noted much. This method, based on Perron-Frobenius theory, considers the continuity of durability in one sector to the others due to the quantity of the final demand and added value. So, Input-Output table of the year 2001 aggregated to 27 sectors are used. The results represent that petrochemical sector in all the methods used has strong Forward linkage (FL>1) and weak Backward linkage (BL<1). Thus, this is not a key sector. Strong Forward linkage shows a high level of intermediate demand belonging to all sectors. Hence, we can say that petrochemical sector is a superior industry for most economic sectors and its sufficiency is higher than other economic sectors.