This book attempts to show, in a style acceptable to both academics and hurried planning executives, how simple analytic tools may be used to bridge the substantial gap between producing an input-output table and using one. In pursuing this goal, we eschew all discussions of complex programming models, for example, and concentrate on, above all, interpretation of the transactions table itself, on such common tools as multipliers, impact analysis, projections models, and self-sufficiency analysis, and on a few innovations such as income-per-employee indices, development simulators, and market analysis routines. Our primary purpose has been to show how planners, both private and public, can use regional input-output analysis quickly and to their advantage. The Georgia Interindustry Study was sponsored by the Office of Planning and Budget and the Department of Industry and Trade of the State of Georgia; their support is gratefully acknowledged. The fmal study report, of which this book represents a substantial revision, benefited enormously from the support and incisive criticisms of Dr. William W. Nash, then with the Office of Planning and Bud~t; his efforts are warmly appreciated. Many other officials in Georgia government contributed to this study, including: Louis Schneider and Kenneth P. Johnson in the' Office of PlaJ}ning and Budget; James O. Bohanan, James Butler, George Rogers, and H.W. Wiley in the Department of Industry and Trade; Joe Woodall and Corine Cross in the Department of Labor; William M. Nixon in the Department of Audits; and J .B.

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1. Introduction.- 1.1 Purpose.- 1.2 Significance of the Georgia Economic Model.- 1.3 Organization of this book.- 2. The Logic of Input-Output Models.- 2.1 Introduction.- 2.2 The state transactions table.- 2.3 The rationale for a model: analysis vs. description.- 2.4 Preparing the transactions table: closing with respect to households.- 2.5 The economic model.- 2.6 Economic change in input-output models.- 3. Constructing the Transactions Table.- 3.1 General approach.- 3.2 Local- and primary-data sources.- 3.3 Secondary-data sources.- 3.4 The estimating procedure.- 4. Input-Output Relations in the Georgia Economy.- 4.1 Introduction.- 4.2 Final demand.- 4.3 Final payments.- 4.4 Interindustry transactions.- 4.5 Income and product accounts for Georgia, 1970.- 4.6 Summary.- 5. Economic Multipliers for Georgia Industries.- 5.1 Introduction.- 5.2 The multiplier concept.- 5.3 Output and employment multipliers.- 5.4 Household-income multipliers.- 5.5 Government-income multipliers.- 5.6 Industry contributions to the Georgia economy.- 6. Economic Projections.- 6.1 Introduction.- 6.2 Types of projections.- 6.3 The projection model.- 6.4 Baseline projections of the Georgia economy, 1980.- 7. Economic Intelligence.- 7.1 The strategy of development and input-output analysis.- 7.2 A self-sufficiency analysis.- 7.3 Income-per-employee index.- 7.4 Synthesis.- 7.A Mathematical appendix on skyline charts.- 8. Impact Analysis.- 8.1 Types of short-run changes.- 8.2 Trade-pattern analysis.- 8.3 Development simulators.- 8.4 Analysis of public projects: a development highway.- 9. A Market Information System for Georgia.- 9.1 The input-output table as a market information system.- 9.2 A sample market analysis.- 9.3 Sources of data and computations for market analyses.- 9.4 Summary.- 10. Conclusions and Extensions.- 10.1 Study summary.- 10.2 Extensions of the basic regional model.- 10.3 Conclusion.- Appendices.- A. Income and Product Accounts for Georgia, 1970.- B. Projections of Employment Growth in Georgia: A Shift and Share Analysis (by Charles F. Floyd).- B.1 Introduction.- B.2 Shift and share methodology.- B.2.1 National growth component.- B.2.2 Industrial mix component.- B.2.3 Regional share component.- B.2.4 Net relative change.- B.3 Projection methodology.- B.4 An application of shift and share analysis: Georgia employment growth, 1950-1980.- C. Tables.- Selected References.