The supply table represents the total supply of products from domestic production by economic sectors and from imports. The use table shows the total use of these products as intermediate consumption by domestic economic sectors or as final demand such as consumption expenditure, gross capital formation or exports. This table is supplemented by the components of value added in the production process.
Input-output tables are analytically derived from supply and use tables. Input-output tables in the product-by-product version show the product and value added inputs which are necessary for manufacturing the entire domestic supply of a particular product. Input-output tables can be used to estimate the direct and indirect effects of increases in final demand on macroeconomic variables such as production, value added, imports or employment. These effects are presented as multipliers.