مهرنوش وطن خواه

Abstract

Passing from the link between production factors to final goods, along with ignoring the role and importance of intermediate goods in the ۲۰th century, is considered a turning point of countries' participation in final production chains. Analyzing this issue requires knowing the internal environment of production chains. Although production chains have been discussed in the domestic literature, it can be seen that in none of the researches, an index has been provided to measure the complexity of production chains, and the present research will solve the mentioned defect. What is meant by the complexity of production chains? Production chains are inherently complex because, to produce a product, a direct and indirect input of intermediary data is needed. In this way, if there is a wide platform, a direct need for intermediate data is formed in the first stage, and to produce these intermediate data, intermediate data is also needed in the second stage. The transformation of the last input is repeated. In this regard, the existing thesis includes two distinct aspects. The first aspect of measuring the complexity index of production chains in Iran's economy, and for this purpose, the internal environment of production chains in the form of a production cycle is taken into consideration from the two perspectives of input demand and output supply, and the second aspect of measuring the ratio of the complexity index of production chains with upstream and downstream activities . In order to realize these two aspects, ۲۰ groups of products from the most detailed symmetric product data-output table have been created in a product with dimensions of ۱۳۰ which were extracted through the data-output tables of the Central Bank of ۲۰۱۵. A summary of the general findings shows that the "other industries" product group has a complexity equal to ۱.۸۷۹۷ units and is placed in the lowest part of domestic production chains in terms of complexity. In the most upstream part of the production chains, the "crude oil and natural gas" product group creates complexity equal to ۰.۱۳۴۱ units. The product group "other mines" has a complexity of ۰.۵۴۸۹ units, and among the ۲۰ product groups, it occupies the middle position, and the product group "agriculture" has a complexity equal to ۰.۶۱۲۹ units, and is in the position It is placed eighth. The status of the rest of the product group will be discussed in detail in the thesis chapters.