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Method for Constructing Commodity by Industry Flow Matrices


Author Info

  • Randall Jackson

    (Regional Research Institute, West Virginia University)

  • Walter Schwarm

    (Regional Research Institute, West Virginia University)

  • Yasuhide Okuyama
  • Samia Islam

    (Department of Economics, Boise State University)


This paper describes the method used to construct an interregional Commodity by Industry Flow matrix for the United States. The interregional flow matrix method involves the construction of single-state (and DC) SAMs using data from IMPLAN. Once complete, the interregional flows connecting states are estimated using a method based on the Commodity Flow Survey data published by the Bureau of Transportations Statistics. The estimated interregional SAM is then adjusted to insure the integrity of intraregional and system-wide accounts. The procedures have been designed with the goal of ease of replicability, so that updates and extensions of the database can be generated efficiently and at much lower cost as new data are released. The resulting US interregional framework describes flows within and among the 50 states and the District of Colombia, and will provide a valuable database for a broad range of analysis on regions, interregional relationships and policy research.

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Bibliographic Info

Paper provided by Regional Research Institute, West Virginia University in its series Working Papers with number 200405.

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Length: 14 pages
Date of creation: 2004
Date of revision:
Handle: RePEc:rri:wpaper:200405

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Related research

Keywords: commodity by industry flow; SAM; IMPLAN; regional development; policy;

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  1. Round, Jeffrey I, 1985. "Decomposing Multipliers for Economic Systems Involving Regional and World Trade," Economic Journal, Royal Economic Society, vol. 95(378), pages 383-99, June.
  2. Batten, D & Martellato, D, 1985. "Classical versus Modern Approaches to Interregional Input-Output Analysis," The Annals of Regional Science, Springer, vol. 19(3), pages 1-15, November.
  3. Kilkenny, Maureen & Rose, Adam, 1995. "Interregional Sams and Capital Accounts," Staff General Research Papers 5340, Iowa State University, Department of Economics.
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Cited by:
  1. Schwarm, Walter R. & Jackson, Randall W. & Okuyama, Yasuhide, 2006. "An Evaluation of Method for Constructing Commodity by Industry Flow Matrices," Journal of Regional Analysis and Policy, Mid-Continent Regional Science Association, vol. 36(1).
  2. Ghemawat, Pankaj & Llano, Carlos & Requena, Francisco, 2010. "Competitiveness and interregional as well as international trade: The case of Catalonia," International Journal of Industrial Organization, Elsevier, vol. 28(4), pages 415-422, July.
  3. Randall Jackson & Walter Schwarm, 2011. "Accounting foundations for interregional commodity-by-industry input-output models," Letters in Spatial and Resource Sciences, Springer, vol. 4(3), pages 187-196, October.
  4. JiYoung Park & Peter Gordon & James Moore & Harry Richardson, 2009. "A two-step approach to estimating state-to-state commodity trade flows," The Annals of Regional Science, Springer, vol. 43(4), pages 1033-1072, December.
  5. Alan T. Murray, 2010. "Quantitative Geography," Journal of Regional Science, Wiley Blackwell, vol. 50(1), pages 143-163.
  6. Robinson, Dennis P. & Liu, Zuoming, 2006. "The Effects of Interregional Trade Flow Estimating Procedures on Multiregional Social Accounting Matrix Multipliers," Journal of Regional Analysis and Policy, Mid-Continent Regional Science Association, vol. 36(1).


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