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Regional Water Footprints Of The Yangtze River: An Interregional Input-Output Approach


  • Tomohiro Okadera
  • Nobuhiro Okamoto
  • Masataka Watanabe
  • Jaruwan Chontanawat


Recently, researchers have applied the multi-regional input-output (MRIO) approach to water footprint (WF) analysis. The concept of interregional input-output (R-MRIO) was developed to analyse regional issues. Researchers have concentrated on the development of global or international input-output (N-MRIO) tables. Using the N-MRIO and the R-MRIO approach allows the study of global and regional issues, respectively. The WF is an indicator influenced by trade among nations and regions. However, the treatment of imports in an R-MRIO approach differs in whether international imports are separated or combined. We evaluate the effects of the difference between these models and discuss policy implications for the Yangtze River, China. The WF calculated using the combined type model is 11% larger than that by the separated type model. This difference can be ascribed to international imports, mainly internal consumption and interregional trade. We find that this difference affects social equity in water-abundant areas.

Suggested Citation

  • Tomohiro Okadera & Nobuhiro Okamoto & Masataka Watanabe & Jaruwan Chontanawat, 2014. "Regional Water Footprints Of The Yangtze River: An Interregional Input-Output Approach," Economic Systems Research, Taylor & Francis Journals, vol. 26(4), pages 444-462, December.
  • Handle: RePEc:taf:ecsysr:v:26:y:2014:i:4:p:444-462
    DOI: 10.1080/09535314.2014.934324

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    Cited by:

    1. Okadera, Tomohiro & Geng, Yong & Fujita, Tsuyoshi & Dong, Huijuan & Liu, Zhu & Yoshida, Noboru & Kanazawa, Takaaki, 2015. "Evaluating the water footprint of the energy supply of Liaoning Province, China: A regional input–output analysis approach," Energy Policy, Elsevier, vol. 78(C), pages 148-157.
    2. repec:eee:rensus:v:81:y:2018:i:p1:p:978-993 is not listed on IDEAS
    3. Xueting Zhao & Randall W. Jackson, 2016. "China’s Inter-Regional Trade of Virtual Water — A Multi-Regional Input–Output Table Based Analysis," Water Economics and Policy (WEP), World Scientific Publishing Co. Pte. Ltd., vol. 2(02), pages 1-28, June.
    4. Duan, Cuncun & Chen, Bin, 2017. "Energy–water nexus of international energy trade of China," Applied Energy, Elsevier, vol. 194(C), pages 725-734.
    5. Xueting Zhao, 2014. "China's Inter-regional Trade of Virtual Water: a Multi-regional Input-output Modeling," Working Papers Working Paper 2014-04, Regional Research Institute, West Virginia University.

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