For what years are industry estimates available?

Annual GDP-by-industry estimates based on the 1997 North American Industry Classification System (NAICS) are available for 1947 and forward; annual industry estimates based on the Standard Industrial Classification (SIC) system are available for 1947-1997. The annual input-output (I-O) accounts estimates, consistent with the GDP-by-industry accounts and classified using NAICS, are available for 1998 and forward.

What is gross output by industry and how does it differ from gross domestic product (or value added) by industry?

Gross domestic product (or value added) by industry and gross output by industry are both published as part of BEA's industry accounts, and both sets of statistics provide important insights into an industry’s contribution to the overall economy.

What are direct and indirect requirement coefficients?

Direct requirement coefficients are inputs as a proportion of the output of the purchasing industry. It is usually expressed as aij, the input requirement of commodity i by producing one dollar output by industry j. Indirect requirement coefficients are additional input requirements that are necessary to fulfill the need to produce one dollar of an industry output. For more discussion of this topic, see any input-output text book. We recommend Miller and Blair, Input-Output Analysis: Foundations and Extensions (1985).

Where can I access data on a specific industry, or specific companies within an industry?

Detailed data are available in the 2002 Benchmark Input-Output table for industry and commodity output, final uses by commodity, value added by industry, and intermediate purchases of commodities by industries.  The Benchmark table is released at the sector, summary, and detail level.  These generally correspond to 2-, 4-, and 6-digit NAICS codes respectively.

Where can I find I-O information about specific cities, states, or regions?

The Regional Economic Analysis Division at BEA prepares input-output multipliers for states and counties using the Regional Input-Output Modeling System (RIMS II). RIMS II is based on national input-output data and regional economic accounts data. For more information on RIMS II, please see http://www.bea.gov/regional/rims. Other state and local area information, including gross state product and personal income, is available at http://www.bea.gov/regional/.

Where can I find detailed investment data by industry?

Detailed investment data for equipment, software and structures used by industry are presented in the capital flow table, which is released for each benchmark year (years ending in ‘2’ and ‘7’). The most recent capital flow table at this time is for 1997, and can be found at http://www.bea.gov/industry/capflow_data.htm. The 1997 capital flow table was released in the November 2003 Survey of Current Business.