U.S. Benchmark Input-Output Accounts: Data and methods Comments on “China’s Input-Output Survey and Its Tabulation Method” Brian C. Moyer 13th OECD-NBS Workshop on National Accounts Haikou, China November 30 – December 4, 2009 www.bea.gov U.S. I-O Accounts • Benchmark I-O Accounts • Based primarily on Economic Census data • Prepared every five years • 400 industries and commodities • Annual I-O Accounts • Rely heavily on benchmark I-O accounts • Based on annual survey data • 65 industries and commodities www.bea.gov 2 Census data supplemented with … • Annual survey data • Business expenses data • Data from the tax authority • Administrative data • Trade association data • Data from other government agencies www.bea.gov 3 Building the benchmark accounts • Output by industry and commodity • Intermediate purchases by industry • Value added by industry • Final uses; transportation and trade margins • Reconciliation and balancing www.bea.gov 4 Industry and commodity output • Industry output • Establishment based • Classified by NAICS • Includes all production activities—primary and secondary • Commodity output Prepared on a “where-ever-made” basis For example, car repair services include all receipts for car repair, regardless of whether the service is performed in the auto repair industry, by gasoline service stations, or by automotive dealers www.bea.gov 5 Output by sector • Agriculture: receipts • Utilities: receipts • Manufacturing: shipments • Trade: margin = sales - cost of goods • Services: receipts • Non-profits and auxiliaries: expenses www.bea.gov 6 Adjustments to Census data • Non-employers • Imputations • Tips • Misreporting/non-filers • Sales and excise taxes www.bea.gov 7 Coverage gaps Sectors not covered by the Economic Census • • • • • • www.bea.gov Agriculture U.S. Postal Service Rail transportation Education Religious organizations Labor unions 8 Make table COMMODITIES Mining and Construction Manufacturing Trade and Transportation Utilities Finance, Insurance, and Real Estate Total Industry Output Other Mining and Construction INDUSTRIES Manufacturing Trade and Transportation Utilities Finance, Insurance, and Real Estate Other Total Commodity Output www.bea.gov 9 Intermediate purchases • Input category controls • Census data on broad groups of commodities purchased by industries—materials consumed, legal services, advertising, repair services, rental, etc. • Variety of additional data used from other government agencies, trade associations, etc. • Detailed intermediate purchases by industry at the transactions level www.bea.gov 10 Value added by industry • Value added = Gross Output – Intermediate Inputs • Value added = Compensation + Gross Operating Surplus + Taxes on production www.bea.gov 11 Quality weighting • Reliability indicators assigned to components of intermediate inputs and gross operating surplus by industry—in most cases, coefficients of variation • I-O constraints imposed • Less reliable components of value added adjust more; more reliable components adjust less www.bea.gov 12 Quality-weighted results Income-based Combined Production-based 59,000 60,000 61,000 62,000 63,000 64,000 65,000 66,000 67,000 Value added (Millions of dollars) www.bea.gov 13 Final uses • Estimated in one of two ways • Directly from Economic Census data using “class of customer” data • Indirectly using commodity-flow method Consumer purchases = shipments + imports – exports – intermediate purchases – government purchases - change in inventories – investment in equipment + margin + transportation costs www.bea.gov 14 Distribution of margins • Transportation, wholesale trade, and retail trade output distributed to commodities based on a variety of data sources • Transportation: commodity flow survey • Wholesale trade: product-line sales by type of wholesaler • Retail trade: product-line sales by type of retailer • Margin distributed to detailed commodities based on levels of transactions www.bea.gov 15 Use table INDUSTRIES Mining and Construction Manufacturing Trade and Transportation Utilities FINAL USES Finance, Insurance, and Real Estate Other Personal Consumption Expenditure Private Fixed Investment Change in Private Inventories Net Exports Government Consumption and Investment Total Commodity Output and Value Added Mining and Construction COMMODITIES Manufacturing Trade and Transportation Utilities Finance, Insurance, and Real Estate Other VALUE ADDED Compensation Taxes on Production and Imports Gross Operating Surplus Total Industry Output and Final Uses www.bea.gov 16 Reconciliation and balancing • Value added reconciled with Industry Accounts; final uses reconciled with National Accounts • Balancing • • • • • www.bea.gov Based on RAS procedure—scaling of transactions High-quality cells are “frozen” Outputi = Inputsi + Value addedi Total commodity output = Total industry output Total final uses = total value added = GDP 17
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