2013 Fiscal Year Final Research Report
Comparative Analysis of CO2 Emission Structures Using the Spectral Graph Theory
| Project/Area Number |
23510046
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental impact assessment/Environmental policy
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| Research Institution | Kyushu University |
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Principal Investigator |
KAGAWA Shigemi 九州大学, 経済学研究科(研究院), 准教授 (20353534)
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| Co-Investigator(Kenkyū-buntansha) |
KONDO Yasushi 早稲田大学, 政治経済学術院, 教授 (80313584)
NANSAI Keisuke 独立行政法人国立環境研究所, 循環型社会・廃棄物研究センター, 主任研究員 (80391134)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 産業連関分析 / 産業クラスター分析 / スペクトラルグラフ分析 / サプライチェーン / CO2排出量 / CO2クラスター |
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| Research Abstract |
This study proposes clustering techniques for finding groups of industries with relatively large CO2 emissions through industrial relations, that is CO2 cluster. According to our empirical results, the optimal number of industry clusters from the automobile supply-chain network is 19, and 4 industry clusters are playing a key role in CO2 emission reduction. In addition, this study attempted to detect CO2 clusters from the industrial structures of Japan, U.S.A., and China by applying the environmentally-extended Asian input-output table to the clustering technique. The results show that the Japanese economy, US economy, and Chinese economy include 5 clusters, 11 clusters, and 7 clusters, respectively and reveal a variety of cluster structures in their economies.
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[Journal Article] Better Cars or Older Cars? : Assessing CO_2 Emission Reduction Potential of Passenger Vehicle Replacement Programs2013
Author(s)
Kagawa, S., Hubacek, K., Nansai, K., Kataoka, M., Managi, S., Suh, S. and Kudoh, Y
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Journal Title
Global Environmental Change
Volume: vol. 23, no. 6
Pages: 1807-1818
DOI
Peer Reviewed
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[Journal Article] Estimates of Embodied Global Energy and Air-emission Intensities of Japanese Products Using a Global Link Input-Output Model2012
Author(s)
Nansai, K., Kagawa, S., Kondo, Y., Suh, S., Nakajima, K., Inaba, R. and Tohno, S
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Journal Title
Environmental Science & Technology
Volume: vol. 46, no. 16
Pages: 9146-9154
DOI
Peer Reviewed
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[Journal Article] Identifying the Substance Flow of Metals Embedded in Japanese International Trade by Use of WIO-MFA Model2011
Author(s)
Nakajima, K., Nansai, K., Matsubae, K., Kondo, Y., Kagawa, S., Inaba, R., Nakamura, S. and Nagasaka, T
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Journal Title
ISIJ International
Volume: vol. 51, no. 11
Pages: 1934-1939
DOI
Peer Reviewed
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[Journal Article] Role of Motor Vehicle Lifetime Extension in Climate Change Policy2011
Author(s)
Kagawa, S., Nansai, K., Kondo, Y., Hubacek, K., Suh, S., Minx, J., Kudoh, Y., Tasaki, T., and Nakamura, S
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Journal Title
Environmental Science & Technology
Volume: vol. 45, no. 4
Pages: 1184-1191
DOI
Peer Reviewed
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