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RIEEM Fellows

Shigeru Matsumoto

Aoyama Gakuin University

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    Shigeru Matsumoto joined the Aoyama Gakuin University faculty in 2008. He studied on Heiwa Nakajima Foundation Scholarship at North Carolina State University, where he earned his Ph.D. in economics. He also holds his Masters of Environmental Science from Tsukuba University. Before coming to Aoyama Gakuin University, he spent seven years on the faculty of Kansai University.

    His research interest lies in the applied welfare economics, with particular focus on consumer behavior analysis. In recent years, he studies households' pro-environmental behaviors such as recycling and energy-saving practices as well as consumers' valuation on food attributes such as organic farming. He teaches courses on Environmental and Agricultural Economics at Aoyama Gakuin University.

    • Professor, Aoyama Gakuin University, 2012 to present.
    • Visiting Researcher, Institut de Ciència i Tecnologia Ambientals (ICTA), Universitat Autònoma de Barcelona (UAB),2015-2016.
    • Visiting Researcher, National Institute for Environmental Studies of Japan, 2011-2013
    • Associate Professor, Aoyama Gakuin University, 2007 to 2011.
    • Associate Professor, Kansai University, 2003-2006.
    • Visiting Professor, Department of Economics, Duke University, 2003.
    • Assistant Professor, Kansai University, 2000-2002.
    • Research Economist, International Development Center of Japan, 1998-1999.

Hakaru Iguchi

Kyoto Sangyo University

Kazuyuki Iwata

Matsuyama University

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    • Professor, Faculty of Economics, Matsuyama University, 2018 to present.
    • Associate Professor, Faculty of Economics, Matsuyama University, 2017 to 2018.
    • Associate Professor, Faculty of Regional Policies, Takasaki City University of Economics, 2013 to 2017.
    • Assistant Professor, Faculty of Regional Policies, Takasaki City University of Economics, 2011 to 2013.
    • Researcher, Graduate School of Environmental Studies, Tohoku University, 2010 to 2011.
    • Research Fellow (DC2), Japan Society for the Promotion of Science, 2008 to 2010.
    • Matsumoto, S. and Iwata, K., 2019. Do environmental rebates affect replacement of durable products? The analysis of vehicle ownership duration in Japan, Economic Analysis and Policy, 61, 64-72.
    • Yamamori, T., Iwata, K. and Ogawa, A., 2018. Does Money Illusion Matter in Intertemporal Decision Making?, Journal of Economic Behavior and Organization, 145, 465-473.
    • Iwata, K., Katayama, H. and Arimura, T. H., 2015. Do households misperceive the benefits of energy-saving actions?: Evidence from a Japanese household survey, Energy for Sustainable Development, 25, 27-33.

Shigeharu Okajima

Osaka University of Economics

Hiroko Okajima

Towson University

Hiroki Onuma

Research Institute of Economy, Trade and Industry (RIETI)

Yushi Kunugi

Kyoto College of Economics

Yukihide Kurakawa

Kanazawa Seiryo University

Yoshihumi Konishi

Keio University

Hiroaki Sakamoto

Kobe University

Mari Sakudo

University of Tsukuba

Taisuke Sadayuki

Seijo University

Makoto Sugino

Yamagata University

Environmental Economics, Applied microeconomics

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    2014.4- present: Associate Professor, Faculty of Humanities and Social Sciences, Yamagata University
    2003.4-2014.3: Assistant Professor, School of Commerce, Waseda University

    • Sugino, Makoto, Arimura, Toshi H. and Morgenstern, Richard (2013) "The effects of alternative carbon mitigation policies on Japanese industries." Energy Policy 62, 1254-1267.
    • Sugino, Makoto, Morita, Minoru, Iwata, Kazuyuki and Arimura, Toshi H. (2017). "Multiplier impacts and emission reduction effects of Joint Crediting Mechanism: analysis with a Japanese and international disaggregated input–output table." Environmental Economics and Policy Studies 19(3), 635-657.
    • Sugino, Makoto and Toshi H. Arimura (2011) "The effects of voluntary action plans on energy-saving investment: an empirical study of the Japanese manufacturing sector." Environmental Economics and Policy Studies 13(3), 237-257.

Shiro Takeda

Kyoto Sangyo University

Environmental Economics, Computable General Equilibrium Analysis

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    2012.4- present: Professor, Faculty of Economics, Kyoto Sangyo University
    2007.4-2012.3: Associate Professor, Faculty of Economics, Kanto Gakuen University
    2005.4-2007.3: Assistant Professor, Faculty of Economics, Kanto Gakuen University
    2003.4-2005.3: Lecturer, Faculty of Economics, Kanto Gakuen University

    • Takeda, Shiro, Arimura, Toshi H. and Sugino, Makoto (2019) "Labor Market Distortions and Welfare-Decreasing International Emissions Trading." Environmental and Resource Economics, 74 (1), 271-293, DOI:
    • Takeda, Shiro, Arimura, Toshi H., Tamechika, Hanae, Fischer, Carolyn, & Fox, Alan K. (2014). “Output-based allocation of emissions permits for mitigating the leakage and competitiveness issues for the Japanese economy.” Environmental Economics and Policy Studies, 16(1), 89–110,
    • Takeda, Shiro (2007) “The double dividend from carbon regulations in Japan”, Journal of the Japanese and International Economies, Vol. 21, Issue 3, pp. 336-364.

Kenta Tanaka

Musashi University

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    April, 2019-present : Professor, Faculty of Economics, Musashi University
    April, 2015-March, 2019: Associate Professor, Faculty of Economics, Musashi University
    April, 2013-March, 2015: Assistant Professor, Faculty of Economics, Musashi University
    April, 2012-March, 2013: Researcher, Graduate school of Environmental Studies, Tohoku University

    • "Which performs better under trader settings, double auction or uniform price auction?", Experimental Economics, Vol.22(1), (2019), pp.247-267. (Coauthors, K Kotani, S Managi)
    • "Decision-Making Governance for Purchases of Solar Photovoltaic Systems in Japan", Energy Policy, Vol. 111, (2017),pp.75-84. (Coauthors, M Sekito, S Managi, S Kaneko, V Rai)
    • "Energy conservation and risk of electric outage: A laboratory experimental study", Journal of Energy Engineering, (2016), F4016010. (Coauthors, Y Kurakawa, E Sawada, K Akao, S Managi)

Nori Tarui

University of Hawaii at Manoa

Environmental and Resource Economics, Energy Economics

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    Ph.D. in Agricultural and Applied Economics from the University of Minnesota. The research areas include the economics of climate change, natural resource management, and energy policy. Prior to the current position, he worked in the Earth Institute at Columbia University as an Earth Institute Fellow; and as Assistant Professor and Associate Professor of Economics at the University of Hawaii at Manoa. He has held visiting faculty positions at the University of Minnesota, Hitotsubashi University, Keio University, and Waseda University. His publications include articles in Journal of the Association of Environmental and Resource Economists, Journal of Environmental Economics and Management, and Journal of International Economics. He has served as an editorial board member for several journals including Journal of Environmental Economics and Management, Singapore Economic Review, and Environmental Economics and Policy Studies. His fields are environmental economics, resource economics, and energy economics.

    • Lynham, John; Nitta, Kohei; Saijo, Tatsuyoshi; Tarui, Nori "Why does real-time information reduce energy consumption?” Energy Economics, 54, 2016, 173-181.
    • Konishi, Yoshifumi; Tarui, Nori "Emissions Trading, Firm Heterogeneity, and Intra-Industry Reallocations in the Long Run.” Journal of the Association of Environmental and Resource Economists 2(1), 2015, 1-42.
    • Tarui, Nori "Electric utility regulation under enhanced renewable energy integration and distributed generation” Environmental Economics and Policy Studies, 19(3), 2017, 503-518.
    • li Mason, Charles F.; Polasky, Stephen; Tarui, Nori "Cooperation on Climate-Change Mitigation” European Economic Review, 99, 2017, 43-55.

Miwa Nakai

Fukui Prefectural University

Nicole Darnall

Arizona State University

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    Nicole Darnall is Associate Dean of Faculty Success and Strategic Partnerships in ASU's College of Global Futures and Associate Director and Professor of Management and Public Policy in ASU's School of Sustainability. She is co-founder of ASU’s Sustainable Purchasing Research Initiative and Distinguished Sustainability Scholar at the Julie Ann Wrigley Global Institute of Sustainability. Her research investigates different approaches to encourage organizations and individuals to behave more sustainably. She is an elected Fellow in the National Academy of Public Administration, an Abe Fellow, an Economic and Social Research Council and Social Science Research Council Collaborative Visiting Fellow, an Erasmus Mundus International Scholar, and Spanish Ministry of Education International Fellow. Professor Darnall has received the Academy of Management's Organizations and Natural Environment Best Paper Award. Her research on business-government collaborations received the Academy of Management Public and Nonprofit Management’s Best Journal Article Award, and her scholarship on environmental audits received the Decision Science Institute's Distinguished Paper Award. She has served as a senior editor of Production and Operations Management and associate editor of Business & Society and Organization and Environment. She is on the Editorial Review Board of Cambridge University Press, Public Administration Review, Business & Society, Organization & Environment, and Business Strategy and the Environment. She is a founding member of the Group of Organizations and Natural Environment (GRONEN), a network of European and North American scholars focused on organization sustainability. Prior to her career in academia she worked as an economist for the U.S. Forest Service.

Kohei Nitta

Chiba University of Commerce

Mitsutsugu Hamamoto

Dokkyo University

Noriko Fujiwara

Centre for European Policy Studies(CEPS)

Tetsuya Horie

Sophia University

Agri-environmental Policy

Ken'ichi Matsumoto

Toyo University

Environmental Economics and Policy, Energy Economics and Policy

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    Ken’ichi Matsumoto graduated from Graduate School of Information, Production, and Systems, Waseda University and Graduate School of Policy Studies, Kwansei Gakuin University. He is currently Associate Professor at Faculty of Economics, Toyo University. Before joining Nagasaki University, he was JSPS Research Fellow (DC2 and PD), Research Associate at the National Institute for Environmental Studies, Assistant Professor at the University of Shiga Prefecture, and Associate Professor at Nagasaki University.

    • Climate Change Impacts on Socioeconomic Activities through Labor Productivity Changes Considering Interactions between Socioeconomic and Climate Systems Journal of Cleaner Production, Vol. 216 (2019) pp. 528-541
    • Addressing Key Drivers of Regional CO2 Emissions of the Manufacturing Industry in Japan The Energy Journal, Vol. 40 (2019) pp. 233-258 (Coauthors, Yosuke Shigetomi, Hiroto Shiraki, Yuki Ochi, Yuki Ogawa, and Tomoki Ehara)
    • Economic Instruments to Combat Climate Change in Asian Countries Kluwer Law International (2015) Ken’ichi Matsumoto and Anton Ming-Zhi Gao (eds.)

Takuro Miyamoto

Tohoku Gakuin University

Minoru Morita

Takasaki City University of Economics

Hide-fumi Yokoo

Hitotsubashi University

RAVAGO Majah-Leah

Ateneo de Manila University

Energy economics, economics of natural disaster, resource economics, development economics

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    Majah-Leah V. Ravago is Associate Professor at the Department of Economics, Ateneo de Manila University. Her research interests include energy economics, economics of natural disasters, development economics and resource economics. She was the Program Director of the 2014–2018 USAID grant – Energy Policy and Development Program (EPDP). She served as the President of the Philippine Economic Society (PES) in 2018. She received the One UP Faculty Grant Award in Economics for Outstanding Research and Public Service in UP Diliman (2016-2018), when she was Assistant Professor at UP. In 2016, she was awarded the Outstanding Young Scientist (OYS) in the field of Economics by the National Academy of Science and Technology (NAST).  She earned her BS in Business Economics and MA in Economics from the University of the Philippines. She obtained her PhD in Economics from the University of Hawai‘i in 2012 under the East-West Center (EWC) Graduate Degree Fellowship Program.


Satoshi Nakano

Nihon Fukushi University

Hoang Viet-Ngu

Queensland University of Technology Business Faculty, School of Economics and Finance

Environmental economics; Efficiency & Productivity Analysis; Environmental performance; Technology Adoption

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    Queensland University of Technology (2010 – present)
    University of Queensland (2007 – 2010)


Kouichi Kimoto

Muroran Institute of Technology College of Liberal Arts

public finance, social security, economic policy, social policy

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    2021.4- present: Associate professor, College of Liberal Arts, Humanities and Social Sciences Research Unit, Muroran Institute of Technology.
    2020.6- 2021.3: Junior Researcher, Research Institute for Environmental Economics and Management, Comprehensive Research Organization, Waseda University

    • Kouichi Kimoto(2020)“The Issue of Social Security Reform and Future Funding in Japan.” JOSAI CONTEMPORARY POLICIES RESEARCHES,13(2),pp.19-33
    • Kenji Asakawa, Kouichi Kimoto, Shiro Takeda & Toshi H. Arimura (forthcoming)“ Double Dividend of the Carbon Tax in Japan: Can we increase public support for carbon pricing?” in Toshi H. Arimura and Matsumoto shigeru(eds.),Carbon Pricing in Japan, Springer

Jiaxing Wang

Lecturer, Faculty of Economics and Business Administration, Sapporo Gakuin University

Environmental Economics, Environmental Policy Evaluation, Applied Econometrics

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    Ph.D., Economics, Aoyama Gakuin University

    • Wang, J., and Matsumoto, S. 2020. Can subsidy programs lead customers to select “greener” products?: Evidence from the Eco-car program in Japan. Research in Transportation Economics, Forthcoming. (Elsevier)(共著)
    • Wang, J., Matsumoto, S. 2021. An economic model of home appliance replacement: application to refrigerator replacement among Japanese households. Environmental Economics and Policy Studies. (共著)
    • Wang, J., Sugino, M., and Matsumoto, S. 2019. Determinants of household energy efficiency investment: analysis of refrigerator purchasing behavior. International Journal of Economic Policy Studies, 13(2), pp.389-402. (Springer) DOI 10.1007/s42495-019-00014-0(共著)