Structural analysis deals with economic systems as defined by the set of industries and the relationships between them. However, multi-sectoral models are often limited: when studying economic systems empirically it is difficult to distinguish a priori the subset of basic or important...

This paper assesses a few issues related to the question of finding the so-called important coefficients in an input-output table. Further, these coefficients are located in the corresponding matrices of Canada, the USA and Mexico. Important coefficients are analysed employing graph theoretical...

The Input-Output model has made extensive use of graph and network theory, methods and conclusions, in order to carry out structural analysis; such extensions have yielded powerful insights on the relationships existing between industries in an economic system. It is customary in the field to...