به كارگيري روش بردار ويژه در سنجش پيوندهاي پسين و پيشين بخش هاي اقتصادي

Application of Eigenvector in Measurement of Backward and Forward Linkages

Using Conventional methods of Chenery, Watanabe and Rasmussen in inter industry linkages hae three limitations: Supply and demand sectors cannot be distinguished, distinction between balanced and unbalanced growth strategies are not clear and the measurement of inter industry linkages mainly depends on the size of sectoral intermediate demands. In this paper, we introduce an eigenvector method to overcome those limitations. We use the 22 aggregated sectors of the 1380 (2000) survey-based Input-Output table. The overall results show high correlation coefficients between the conventional methods. Furthermore, , we find that the eigenvector method is able to better identify those sectors which remains in the production process and therefore the key sectors.