Input-Output Analysis: Theory and Foundations (Análise de Insumo-Produto: Teoria e Fundamentos)

This paper presents, in Portuguese, an overview of the input-output theory, originally developed by Wassily Leontief. The first and second chapters present the background of the theory of input-output, placing the work of Leontief in a historical view. Chapter 3 presents the basic theory of input-output. Chapter 4 deals with how the input-output data is overall processed and disseminated by the statistical agencies, and specifically by the Brazilian statistical office (IBGE), and how this information can be analyzed to allow the system to work with the original Leontief model. Chapter 5 deals with how the original Leontief model, developed for a national economy can be extended to the analysis of regional economies, either for a single region or for several interconnected regions. Chapter 6 presents the basic methods of analysis used with input-output models. Chapter 7 deals with the use of input-output in modeling environmental issues. The discussion of how input-output matrices can be obtained by using census and non-census methods is made in Chapter 8. Finally, Chapter 9 aims to present the various possible applications of input-output analysis, while at the same time, outlining the possible future paths in terms of using this powerful tool of analysis.