[1][2] Value here is measured for a specified time period and usually in units of nominal money.
It may be converted to constant units by multiplying by a price index to adjust for changes in prices over time and changes in quality of the goods and services produced.
Gross output for the sector consists of sales, or receipts, and other operating income, plus excise taxes paid and net increases in inventories.
Value-added measures exclude the value of intermediate inputs such as material, energy, and services, whether from the same industry or others.
Sectoral output is the measure of output used in "KLEMS" multifactor measures of productivity, which attempt to account for all direct inputs to production: capital services (K), labor services (L), energy (E), materials purchased (M), and services purchased (S) When calculating labor productivity, a value-added measure of output should be used to avoid counting other inputs (like purchased materials) as if they were created by the labor and capital applied within the sector.