Sensitivity analysis of technicians of the matrix coefficients input product, for a national economy of 111 * 111, year 2010

Abstract

This study identifies the technical coefficients of a National Input-Output Matrix of 111 sectors, whose relative variations cause a greater impact in terms of total production of the branches of activity. Initially, according to their coefficients, the branches of activity are classified as "Very Important"; "Quite Important"; "Little Important"; And "Not Important". It concludes the existence of a reduced number of efficient coefficients that allow greater impacts through the minimum effort. Conversely, "non-significant" ratios cover 93% of the economic fabric, reflecting the need for high levels of investment to achieve significant impacts. Finally, it was established that the activities with the highest concentration of important coefficients, both in rows and columns are: Annual crops (cereals and others) and fodder; Forestry and wood extraction; Copper mining; Processing and preservation of meat; Manufacture of concrete and other mineral products; Generation of electricity; Gas and steam supply; Construction of civil engineering works; Wholesale trade; Retail trade; And Freight transport by road.