The interconnection of an industry to other industries to which it sells its outputs. It is measured as the row sum of the direct requirements table (direct forward linkage) or as the row sum of the total requirements table (total forward linkage). An industry has significant forward linkages when a substantial amount of its output is used by other industries as intermediate inputs to their production. (BEA)

A component of final uses that measures goods and services that are produced by the foreign sector and are purchased as intermediate inputs or for final use in the United States. The definition of imports in the U.S. international transactions accounts differs slightly from that in the NIPAs and I-O accounts, primarily in the treatment of trade in nonmonetary gold and of trade involving U.S. territories. Imports of goods by commodity are valued at U.S. domestic port values, including duties. Imports of services are valued at producers\’ values. The entries for transportation services and for trade include adjustments that convert the value of total imports of goods and services to foreign port value. (BEA)

The valuation in the I-O transaction record that is considered the most statistically reliable—that is, the value most closely based on hard data, such as the Economic Census, and least dependent on adjustments and judgmental estimation. The firm value may be the basic value, the purchasers’ value through wholesale, or the total purchasers’ value. (BEA)

The final use quadrant (of the “use table”�� in an input-output system) shows exports, final consumption expenditure and gross capital formation at purchasers’�� prices in the columns each classified by products in the rows. (SNA)