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This presentation discusses the methodologies, steps, and future research for integrating industry and national economic accounts, including the vision of full integration and the steps for partial integration.
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Integrating Industry and National Economic Accounts Ann Lawson, Brian Moyer, Sumiye Okubo, and Mark Planting Industry Economics Division Presentation for the 2004 OECD National Accounts Expert Meeting October 12-15, 2004
Outline • BEA’s vision for integrating the accounts • Methodologies for integration • Steps for integration • Future research www.bea.gov
BEA Accounts 1. Expenditures approach: GDP = C + I + G + (X - M) 2. Income approach: GDP = Compensation of employees + Gross operating surplus + Taxes on production and imports, less subsidies 3. Production approach: GDP = Gross output - Intermediate inputs Three approaches to estimate GDP www.bea.gov
BEA’s Vision for Integrating the Accounts • Long-term: Full Integration (2008-2010) • Integration of all industry accounts and integration of industry accounts with the national income and product accounts (NIPAs) • Provide a third independent measure of GDP • Short-term: Partial Integration (2004-2007) • Integration of the Annual I-O and GDP-by- industry accounts www.bea.gov
I-O accounts Value added = Gross output - intermediate inputs Quality of gross output is high, but overall quality of intermediate inputs is not GDP-by-industry accounts Value added = Compensation of employees + gross operating surplus + taxes on production and imports, less subsidies Quality depends on source data; gross operating surplus is most problematic Value Added Estimates Depend on Quality of Data www.bea.gov
Partial Integration: Five Steps to Integrate Industry Accounts • Develop consistent level of industry detail • Develop revised 1997 benchmark I-O table • Develop time series of gross output and value added by industry • Apply I-O framework to develop time series of annual accounts • Develop real (inflation adjusted) measures www.bea.gov
Step 1: Develop Consistent Level of Industry Detail www.bea.gov
Step 2: Develop Revised 1997 Benchmark I-O Table • Incorporate results of 2003 NIPA revisions • Set best levels and composition of value added for each industry • Incorporate the best estimates from both sets of accounts www.bea.gov
Good Benchmark data/ poor GDP-by-industry data e.g., Mining Good Benchmark data/ good GDP-by-industry data e.g., Health care Poor Benchmark data/ good GDP-by-industry data e.g., Transportation/ Warehousing Poor Benchmark data/ poor GDP-by-industry data e.g. Construction Merging Information for Value-Added Levels Benchmark I-O Value Added GDP-by-Industry Value Added www.bea.gov
Evaluation Criteria: (1) Benchmark I-O Accounts • Share of an industry’s intermediate inputs covered by quinquennial economic census • Share of an industry’s total gross output accounted for by quinquennial census www.bea.gov
Evaluation Criteria: (2) GDP-by-Industry Accounts • Quality and size of adjustments made to convert enterprise-based, profit-type income to establishment basis • Share of an industry’s value added accounted for by proprietors’ income www.bea.gov
Merging Information from Benchmark I-O & GDP-by- Industry Accounts • Based on our criteria: • Identify point estimate and variance of value added for each publication-level industry in the benchmark I-O and GDP-by-industry accounts • Develop probability distribution of value added for each industry in each set of accounts • Combine the two distributions to get the “best” estimate of value added for each industry www.bea.gov
Merging Information: An Example www.bea.gov
Step 3: Time Series of Gross Output and Value Added by Industry • Set levels of industry gross output and value added to the revised 1997 benchmark I-O table • Extrapolate gross output by industry using annual survey data from the Bureau of the Census • Develop time series of value added by industry by applying GDI extrapolators to 1997 levels • Adjust industry estimates to take into account statistical discrepancy and extrapolation errors www.bea.gov
Step 4: Develop Time-Series of Balanced Annual I-O Accounts • Prepare annual I-O tables, given estimates of gross output, value added, and final demand • Balance annual I-O tables to establish internal consistency and consistency with GDP-by-industry accounts www.bea.gov
Input-Output Use Table www.bea.gov
Step 5: Develop Real Measures • Apply double-deflation procedure to these measures of gross output and intermediate inputs to develop real measures of value added www.bea.gov
Future Research • Evaluate coverage, quality, and consistency of source data from statistical agencies • Develop additional procedures to incorporate new data from 2002 Economic Census and intermediate input data from expanded annual surveys • Develop new processes and procedures for incorporating information from a production-based approach to measuring GDP into the NIPAs www.bea.gov
Questions? • Sumiye.okubo@bea.gov www.bea.gov