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Structural Change in the Washington State Economy: Evidence from Seven Input-Output Models. William B. Beyers Department of Geography University of Washington Ta-Win Lin Office of Financial Management State of Washington Seattle Economics Council May 12, 2010.
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Structural Change in the Washington State Economy: Evidence from Seven Input-Output Models William B. Beyers Department of Geography University of Washington Ta-Win Lin Office of Financial Management State of Washington Seattle Economics Council May 12, 2010
I. Introduction & Background II. Data Base – History of the Washington Models & Standardization Procedures Results A. Change in Output B. Change in Interindustry Structure, in the induced effects linkage system, and output distribution due to final demand C. Change in Employment Requirements D. Changing Components of Final Demand E. Decomposition of sources of Output Change IV. Concluding Comments Outline of Presentation
Regional Input-Output Models Final Demand Total Sales = Total Purchases Total Sales = Intermediate Sales + Final Sales Total Purchases = Intermediate Purchases + Value Added + Imports
Impact Analysis Using I/O Models Direct, Indirect & Induced Requirements Matrix Final Demand = X Output Employment Impacts calculated from Output Impacts
Background on Structural Change • Leontief and Carter’s pioneering research • Early national tests • Early regional tests • The presumption of instability • Early data from Washington State – Conway, Beyers • Early data from other regions • Challenges—getting data into a consistent sectoring scheme with constant prices
II. History of the Washington I/O models • Models benchmarked against 1963, 1967, 1972, 1982, 1987, 1997, and 2002 • Each of these are Economic Census years • Sectoring scheme has changed not only due to changes in SIC and NAICS, but also due to changes in the importance of industries in the state economy, especially the changing relative importance of goods versus services production
The models were first converted to a common sectoring scheme Price indices were developed from BLS national producer price series, and were applied to sales distributions of sectors Excluded from this are estimates for value added and imports, but we will make these estimates soon The roughly 50 sectors in each of the models were found to be comparable at the level of 25 sectors. Standardizing Prices
III. Analyses of Change A. Change in Output B. Change in Interindustry Structure, in the induced effects linkage system, and output distribution due to final demand C. Change in Employment Requirements D. Changing Components of Final Demand E. Decompositions of sources of change
Change in Interindustry Structure and Output Distribution due to Final Demand
Elements of the Induced Matrix$ from 2002 model P.C.E. Regional Purchases $102.9 Billion 67% of Total earnings Interindustry Transactions $95.1 billion 24% of total purchases Earnings $127.3 billion 32% of total purchases 0
Shares of Intermediate and Personal Consumption Expenditures $1972 Billions
Composition of Personal Consumption Expenditures – Goods Share of total declined from 21% in 1963 to 6% in 2002
Correlations Over Time Industrial Output Multipliers N=26 for each pair of correlations All are significant at the .01 level Correlations weaken with time Similar results for earnings multipliers
Scattergram of 1963 & 2002 Type II Output Multipliers R2 = .57
Share of Output Among Major Categories of Demand Tables 6 and 7- Sales in Constant $, and Percentages in this figure
Decomposition Data & Method • The 7 Washington i/o models in constant $1972, with 25 sectors of detail • Use of Miller & Blair’s decomposition equations • Explaining Change in output as a function of (1) i/o interindustry multiplier change, and (2) final demand change • Explaining Change in final demand due to (1) changes in level, (2) changes in industrial mix, and (3) changes in final demand distribution
Decomposition: Output Change due to Final Demand vs. Intermediate Output
1963-2002 Decomposition Of Sources of Change in Output
Conclusions and Future Analysis (1) • These data provide an unparalleled view of structural change in a region of the U.S. economy • The data reported here may be quite different in other states • Output has had a major realignment since the 1963 Washington Input-Output Model, labor productivity has shown major changes, and the level of exports has risen, particularly to foreign countries
Conclusions and Future Analysis (2) • We need to extend the analysis of non-earnings components of value added • We also need to include estimates of changing imports • We look forward to comments on this presentation. • We realize that there are major statistical issues associated with the analyses reported here, but we believe that this analysis provides a sound perspective on structural change in a growing regional economy in the United States