T is the first of two articles that present the benchmark input-output (-) accounts for the US economy. The second article will be published in the December S C B. The- accounts show the production of commodities (goods and services) by each industry, the use of commodities by each industry, the commodity composition of gross domestic product (), and the industry distribution of value added. These- accounts are used in a variety of analytical and statistical contexts, including in studies of interindustry relationships within the economy and as the framework and benchmarks for other statistical series.