Gross outputs X can be split into intermediate and final products AX+Y=Ⅹ X=BI B=(-A is the( global) Leontief inverse matrix VBp i GNXGN Value added from a source country-sector i used in the production of final goods and services in country-sectorGross outputs X can be split into intermediate and final products： 𝐴𝑋 + 𝑌 = 𝑋 𝑋 = 𝐵𝑌 𝐵 = (𝐼 − 𝐴) −1 is the (Global) Leontief inverse matrix 𝑽෡𝑩𝒀෡ ➢ Value added from a source country-sector i used in the production of final goods and services in country-sector j i GN×GN j