Updated on 2024/10/02

Information

 

写真a

 
KEELEY RYOTA ALEXANDER
 
Organization
Faculty of Engineering Department of Urban and Environmental Engineering Associate Professor
Urban Insitute (Concurrent)
School of Engineering (Concurrent)
Graduate School of Engineering (Concurrent)
Title
Associate Professor
Contact information
メールアドレス

Research History

  • 国際エネルギー機関(京都大学特任研究員) 国連開発計画(京都大学特任研究員) 世界銀行東京防災ハブ(Research Specialist)

    国際エネルギー機関(京都大学特任研究員) 国連開発計画(京都大学特任研究員) 世界銀行東京防災ハブ(Research Specialist)

Research Interests・Research Keywords

  • Research theme:We are conducting empirical research on a wide range of complex problems facing cities, such as energy depletion, environmental pollution, population decline, and disasters, using multifaceted and interdisciplinary approaches including urban engineering and economics.

    Keyword:Energy Economics; Urban Engineering; Environmental Economics; Corporate Activity Analysis

    Research period: 2018.4

Papers

  • The value of invisibility: factors affecting social acceptance of renewable energy Reviewed International journal

    Keeley, Alexander R., Kento Komatsubara, and Shunsuke Managi

    Energy Sources, Part B: Economics, Planning, and Policy   17 ( 1 )   1 - 20   2021.10   ISSN:15567249

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1080/15567249.2021.1983891

    Scopus

    Repository Public URL: https://hdl.handle.net/2324/7182001

  • Does sustainability activities performance matter during financial crises? Investigating the case of COVID-19 Invited Reviewed International journal

    Sunbin Yoo, Alexander Ryota Keeley, Shunsuke Managi

    Energy Policy   155   112330 - 112330   2021.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    Does sustainability activities performance matter during financial crises? Investigating the case of COVID-19
    As a market for sustainability investing is growing rapidly, understanding the impact of environmental, social, and governance (ESG) activities on firms' financial performance is becoming increasingly important. In this study, we examine the effect of ESG performance on stock returns and volatility during the financial crisis resulting from the coronavirus (COVID-19) pandemic. To quantify the impact, we use company-level daily ESG score data and United Nations Global Compact (GC) score data. In our dataset, ESG scores indicate ESG performance that is deemed important to financial materiality, and the GC score indicates the firm reputation for following UN rules. Our results indicate that during the pandemic, an increase in the ESG score, especially the E score component, is related to higher returns and lower volatility. Conversely, increasing GC scores is correlated with lower stock returns and higher volatility. In addition, we find that firms in lower return groups benefit more than other firms. Focusing on energy sector impacts, we show that although the non-energy sector benefits more than the energy sector from increasing E scores, energy sector firms can still reduce their stock price volatility by increasing these scores. Our study offers significant implications for ESG investment strategies during financial crises.

    DOI: 10.1016/j.enpol.2021.112330

    Repository Public URL: https://hdl.handle.net/2324/7182000

  • A systematic review of life cycle assessment of hydrogen for road transport use Reviewed International journal

    Rinawati, Dyah Ika, Alexander Ryota Keeley, Shutaro Takeda, and Shunsuke Managi.

    Progress in Energy 4, no. 1 (2021): .   4 ( 1 )   2021.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/2516-1083/ac34e9

  • Policy targets behind green bonds for renewable energy: Do climate commitments matter? Reviewed International journal

    Clarence Tolliver, Alexander Ryota Keeley, Shunsuke Managi

    Technological Forecasting and Social Change   157   120051   2020.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    Policy targets behind green bonds for renewable energy : Do climate commitments matter?
    Green bond markets are expanding precipitously and proceeds are increasingly being allocated to renewable energy. There is a gap in the empirical literature on the policies affecting green bond finance for the renewable energy assets critical to achieving Paris Agreement emissions reduction targets. To assess the impact that Nationally Determined Contributions (NDCs) to the Paris Agreement have on green bond finance for renewable energy, this study employed a difference-in-differences (DiD) analysis using an original panel dataset of $25 billion in green bond proceeds allocations in 66 countries between 2008 and 2017. An original normalized index of NDC robustness was constructed to measure unique NDC impacts on green bond disbursements to renewable energy. The results are the first to show that in the years following their submission in 2015, comparatively stringent NDCs demonstrated large positive impacts on green bond allocations to renewable energy with 99% statistical significance. These findings suggest that beyond conventional economic policy supports, climate commitments can drive global emissions reductions by inciting greater green bond finance for the renewable energy projects vital to achieving emissions reduction targets.

    DOI: 10.1016/j.techfore.2020.120051

  • Green Innovation and Finance in Asia Reviewed International journal

    Clarence Tolliver, Hidemichi Fujii, Alexander Ryota Keeley, Shunsuke Managi

    Asian Economic Policy Review   16 ( 1 )   67 - 87   2020.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    Green Innovation and Finance in Asia
    Green innovation and green finance are two key components of sustainable development. In the most populous, fastest-growing region in the world, Asian countries are pressed to maintain economic growth while addressing climate change and environmental externalities. Japan, South Korea, and China have each implemented policies to promote green innovation and finance conducive to such ends. While each country possesses unique capabilities, the extent to which they can promote environmentally adjusted multifactor productivity growth, green patent registrations, green bond issuances, green foreign direct investment, and environmental, social, and governance information disclosures stands to impact on their shifts to sustainable growth paradigms.

    DOI: 10.1111/aepr.12320

  • The Impact of Renewable Energy Generation on the Spot Market Price in Germany: Ex-Post Analysis using Boosting Method Reviewed International journal

    The Energy Journal   41 ( 01 )   119 - 139   2020.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    The Impact of Renewable Energy Generation on the Spot Market Price in Germany: Ex-Post Analysis using Boosting Method
    This study combines regression analysis with machine learning analysis to study the merit order effect of renewable energy focusing on German market, the largest market in Europe with high renewable energy penetration. The results show that electricity from wind and solar sources reduced the spot market price by 9.64 (sic)/MWh on average during the period from 2010 to 2017. Wind had a relatively stable impact across the day, ranging from 5.88 (sic)/MWh to 8.04 (sic)/MWh, while the solar energy impact varied greatly across different hours, ranging from 0.24 (sic)/MWh to 11.78 (sic)/MWh and having a stronger impact than wind during peak hours. The results also show characteristics of the interactions between renewable energy and spot market prices, including the slightly diminishing merit order effect of renewable energy at high generation volumes. Finally, a scenario-based analysis illustrates how different proportions of wind and solar energies affect the spot market price.

    DOI: 10.5547/01956574.41.si1.akee

  • Drivers of green bond market growth: The importance of Nationally Determined Contributions to the Paris Agreement and implications for sustainability Reviewed

    Clarence Tolliver, Alexander Ryota Keeley, Shunsuke Managi

    Journal of Cleaner Production   244   118643   2020.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    Drivers of green bond market growth The importance of Nationally Determined Contributions to the Paris Agreement and implications for sustainability
    Green bonds are increasingly being applied to finance emissions reductions, sustainable development, and other cleaner production investments conducive to reaching the 2 °C temperature target of the Paris Agreement. As their markets are relatively nascent, there is a gap in the empirical literature on the drivers of green bond market growth. To assess the impact that capital market growth drivers and Nationally Determined Contributions to the Paris Agreement have on green bond issuance volumes as indicators of market growth, this study employed a structural equation model using a panel dataset of over $300 billion in green bonds issued in 49 countries between 2007 and 2017. This is the first econometric study to demonstrate unique drivers of green bond market growth in addition to factors that similarly affect conventional bond market growth. This is also the first study to construct a normalized index of Nationally Determined Contributions robustness scores to measure their impacts on green bond market growth. Macroeconomic latent factors exerted three times the total influence exerted by institutional latent factors. Institutional effects are positive and indirect, while OECD membership impacts were small and statistically insignificant. Nationally Determined Contributions scores exerted the largest positive and statistically significant impacts among observed variables. These results suggest that Nationally Determined Contributions and other macroeconomic and institutional factors are driving growing green bond issuances that will finance climate and sustainability investments through the future. They also highlight the need for broader examinations of the determinants of green bond issuances as investment vehicles for sustainable outcomes.

    DOI: 10.1016/j.jclepro.2019.118643

  • Green bonds for the Paris agreement and sustainable development goals Reviewed

    Clarence Tolliver, Alexander Ryota Keeley, Shunsuke Managi

    Environmental Research Letters   14 ( 6 )   064009   2019.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    Green bonds for the Paris agreement and sustainable development goals
    The Paris Agreement under the United Nations Framework Convention on Climate Change and the Sustainable Development Goals (SDGs) of the United Nations Development Programme both entail substantial global investments through cost-efficient, long-term financing. Noted for their risk-alleviating features and appeal to institutional and socially responsible investors, green bonds are gaining prominence in climate change and sustainable development finance frameworks. This study is the first to thoroughly examine publicly reported green bond proceeds allocations from 53 organizations to projects and assets throughout 96 countries from 2008 to 2017. Green bond markets are growing rapidly, and yearly proceeds allocation trends reveal increasing disbursements to renewable energy, clean water, low-carbon transportation, and other Paris Agreement and SDG-related investment categories. Circle plot analysis reveals unique allocation trends to specific green sectors at both regional and national levels. International finance institutions allocated the largest share of proceeds by both frequency and volume, and the projects and assets financed with green bonds in this study sample are associated with over 108 million tonnes of carbon dioxide equivalent (tCO2e) in greenhouse gas emissions reductions and over 1500 gigawatts in renewable energy capacity. The study concludes with suggestions for improving green bond post-issuance reporting and provides insights for future green bond applications in expanding Paris and SDG agendas.

    DOI: 10.1088/1748-9326/ab1118

  • The importance of financial cost for renewable energy projects: economic viability assessment of renewable hybrid mini-grid systems in Indonesia Reviewed International journal

    Alexander Ryota Keeley, Shunsuke Managi

    Green Finance   1 ( 2 )   139 - 155   2019.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3934/GF.2019.2.139

  • Are renewables as friendly to humans as to the environment? A social life cycle assessment of renewable electricity Reviewed

    Sustainability (Switzerland)   11 ( 5 )   2019.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3390/su11051370

  • Relative significance of determinants of foreign direct investment in wind and solar energy in developing countries – AHP analysis Reviewed

    Alexander Ryota Keeley, Ken’ichi Matsumoto

    123   337 - 348   2018.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.enpol.2018.08.055

  • 日本における小水力発電の普及に係る障壁と課題 ―事業主体の視点から― Reviewed

    97 ( 8 )   245 - 251   2018.8

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    Language:English  

  • Policy Intervention as a Determinant of Foreign Direct Investment : Implications from Renewable Energy Sector Reviewed International journal

    Alexander Ryota Keeley

    Japanese review of political society : journal of the Association for the Study of Political Society   5 ( 5 )   55 - 69   2018.5

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  • Investors' perspective on determinants of foreign direct investment in wind and solar energy in developing economies – Review and expert opinions Reviewed

    179   132 - 142   2018.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jclepro.2017.12.154

  • Determinants of foreign direct investment in wind energy in developing countries Reviewed

    Alexander Ryota Keeley, Yuichi Ikeda

    Journal of Cleaner Production   161   1451 - 1458   2017.9

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    Determinants of foreign direct investment in wind energy in developing countries
    The renewable energy industry is one of the fastest growing industries attracting a great amount of foreign direct investment, being one of the top 5 industries in 2015 in terms of the amount of investment allocated. However, the allocation of foreign direct investment in the sector greatly varies between developing countries. Preceding studies have tried to explain the location determinants of foreign direct investment mainly by looking at the effects of institutional and macroeconomic factors. The renewable energy sector has been supported by various economic, regulatory, and political support policies. Considering the importance of these support policies, the paper analyses their effects on foreign direct investment as location determinants in comparison with that of the widely accepted determinants (institutional and macroeconomic determinants), focusing on wind energy in developing countries. The results show that renewable energy support policies have equivalent or greater effect compared to the widely accepted determinants such as corruption level, price stability, access to finance, and GDP growth. The paper demonstrates the importance of analysing determinants of foreign direct investment focusing on a specific sector rather than looking at overall foreign direct investment. The paper also provides important policy implications including the need to improve the regulatory aspect of renewable energy sector such as access to grid infrastructure in order to attract foreign direct investment into the sector.

    DOI: 10.1016/j.jclepro.2017.05.106

  • Perceived Market Risk of the Renewable Energy Industry in the United States Reviewed

    Alexnader Ryota Keeley, Timothy Dean

    27 ( 3 )   85 - 92   2017.7

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  • Renewable Energy in Pacific Small Island Developing States: the role of international aid and the enabling environment from donor's perspectives Reviewed

    Alexander Ryota Keeley

    Journal of Cleaner Production   146   29 - 36   2017.3

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    Renewable Energy in Pacific Small Island Developing States the role of international aid and the enabling environment from donor's perspectives
    Dependency on fossil fuels is an issue for numerous countries, and in particular, it is an acutely challenging problem for Pacific Small Island Developing States. For the utilization of Renewable Energy in Pacific Small Island Developing States, donor agencies and international organizations play major roles in funding. This study introduces the nature of the past renewable energy projects in Pacific Small Island Developing States and, in the process, clarifies the contribution of international aid to renewable energy deployment. Thereafter, the paper identifies the most important factors related to enhancing an enabling environment for the introduction of Renewable Energy in Pacific Small Island Developing States and the relative importance of these factors with a special focus on donors’ perspectives. The paper clarifies that approximately 1.5 billion USD (2011) was received by Pacific Small Island Developing States over the 44 years from 1970 to 2014 as funding for renewable energy projects that included funding for hardware, and the amount of aid allocated for renewable energy in the region greatly varies between countries. The paper also identifies the important factors that can enhance an enabling environment for the introduction of renewable energy and the relative importance of these factors. Some of the highlighted implications that can be made from the findings of the research are: (1) high renewable energy targets need to be supported by well-structured action plans; (2) there is a need for an effective regulatory body responsible for renewable energy; and (3) the financial aspects of utilities are of higher importance than technological aspects of utilities.

    DOI: 10.1016/j.jclepro.2016.05.011

  • Third Financial Bailout for India's State-owned Power Distribution Companies-and Why it Matters Reviewed

    Alexander Ryota Keeley, Timothy Dean

    27 ( 2 )   21 - 30   2016.10

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  • Motivations, Enabling Factors and Barriers to the Energy Transition in Indonesia and Vietnam Invited Reviewed International journal

    Dimiter Ialnazov, Alexander Ryota Keeley

    2020 6TH INTERNATIONAL CONFERENCE ON ENVIRONMENT AND RENEWABLE ENERGY   505   1900

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1755-1315/505/1/012044

  • The impact of fuel cell vehicles deployment on road transport greenhouse gas emissions through 2050: Evidence from 15 G20 countries

    Abdullah Z., Keeley A.R., Coulibaly T.Y., Managi S.

    Journal of Environmental Management   370   2024.11   ISSN:03014797

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    Publisher:Journal of Environmental Management  

    As global concern over the negative impacts of global warming, primarily caused by using passenger vehicles (PVs), the transition to hydrogen fuel cell vehicles (HFCVs) is an essential alternative for reducing greenhouse (GHG) emissions. This research employs a bottom-up approach to analyze road vehicle fleet's GHG emissions. We calculated GHG emissions from PVs in 15 Group of Twenty (G20) countries based on four scenarios adopting the global HFCVs from 2024 to 2050. This paper introduces business-as-usual (BaU), moderate, aggressive, and non-HFCVs scenario. The results show that the aggressive scenario has the highest sales, estimated between 62,000 and 29.48 million vehicles by 2050, with global hydrogen market penetration rates 48.48%. Building on countries' respective national strategies, the findings highlight China and India as the leading markets for hydrogen demand, with Germany and Japan also showing significant interest. The aggressive scenario further demonstrates that transitioning from internal combustion engine vehicles (ICEVs) to battery electric vehicles (BEVs), plug-in hybrid electric vehicles (PHEVs), and HFCVs can significantly reduce annual GHG emissions. Ultimately, this study finds that the transition to HFCVs could reduce emissions by up to 67.09% by 2050.

    DOI: 10.1016/j.jenvman.2024.122660

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  • The nexus between direct air capture technology and CO<inf>2</inf> emissions in the transport sector

    Ünal E., Keeley A.R., Köse N., Chapman A., Managi S.

    Applied Energy   363   2024.6   ISSN:03062619

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    Publisher:Applied Energy  

    Deploying negative emission technologies has become crucial for limiting the global temperature rise to approximately 1.5 °C above preindustrial levels. DAC technologies are being explored as one of the prospective options. These technologies have been thoroughly investigated as a potential project to capture CO2 emissions and provide purified air, natural gas, or fuel oil. An applied approach, on the other hand, was not taken into consideration while evaluating the influence that this technology has on emissions. For this reason, British Columbia provides a substantial chance to examine emissions that were produced after the DAC actions were put into place in 2015. In this study, the difference-in-differences methodology is employed for the very first time to compare the emissions that are produced by the transport sectors in British Columbia with those emitted by other provinces in Canada. The role that GDP and population play in the release of emissions is also taken into consideration in this paper. Based on the research results, it can be observed that the implementation of DAC initiatives has yielded notable effects. Evidence shows that the DAC effort has led to an average reduction of 0.08 in logarithmic CO2 emissions in the transport sector. By accounting for GDP and population, the empirical results indicate that DAC technology reduced CO2 emissions in British Columbia compared to provinces without DAC facilities. DAC initiatives are expected to become increasingly prevalent between the mid-2030s and 2040s. Overall policy implications suggest that there is a need for DAC technologies to collaborate with alternative mitigation technologies, or alternative technologies should collaborate with DAC technologies that are more efficient to achieve the targeted goals in a short time.

    DOI: 10.1016/j.apenergy.2024.123112

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  • How corporate climate change mitigation actions affect the cost of capital

    Yizhou Wang, Siyu Shen, Jun Xie, Hidemichi Fujii, Alexander Ryota Keeley, Shunsuke Managi

    Corporate Social Responsibility and Environmental Management   2024.5   ISSN:1535-3958 eISSN:1535-3966

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    Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    Abstract

    Japan has been at the forefront of global efforts to accelerate climate change mitigation. Japanese firms have led in the development of decarbonization technologies and have positively disclosed climate change‐related information based on the Task Force on Climate‐related Financial Disclosures recommendations to address climate change. We explore the relationship between corporate climate change mitigation actions and the cost of capital for 2100 Japanese listed companies from 2017 to 2021. The results reveal that a higher carbon intensity correlates with an increased cost of equity, debt, and weighted average cost of capital. Interestingly, although climate‐related information disclosure is associated with an increased cost of debt, it concurrently lowers the cost of equity and overall capital. This research recommends strategic approaches for firms to reduce their costs of capital while proactively combating climate change, highlighting the divergent responses of equity and bond markets to decarbonization initiatives.

    DOI: 10.1002/csr.2853

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  • Analysis of prospective demand for hydrogen in the road transportation sector: Evidence from 14 countries

    Zulfhazli , Keeley A.R., Coulibaly T.Y., Managi S.

    International Journal of Hydrogen Energy   56   853 - 863   2024.2   ISSN:03603199

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    Publisher:International Journal of Hydrogen Energy  

    This paper precisely estimates the looming demand for hydrogen within the transportation sector, spanning 14 pivotal G20 nations from 2022 to 2050, anchored in the global vehicle hydrogen market penetration rate. Employing a robust techno-economic modeling methodology and leveraging Geographic Information System (GIS) for enriched visualization, it unveils distinct environmental dividends across three thoughtfully devised scenarios: Business-as-Usual, Moderate, and Aggressive. Findings herald India and China as pinnacles of hydrogen demand, with South Korea and Japan tailing closely. The study forecasts the energy consumption for solar hydrogen production in G20 countries to oscillate between 3.02 and 2.89 million GWh in 2022, while production costs are anticipated to range from $8.47/kg to $10.01/kg. In an assertive scenario, the paper illuminates a pathway towards achieving a significant CO2 reduction, unmasking environmental savings of up to a staggering 48%, equivalent to 1.5 million mtCO2, by 2050.

    DOI: 10.1016/j.ijhydene.2023.12.246

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  • Beyond the merit order effect: Impact of the rapid expansion of renewable energy on electricity market price

    Mizue Shimomura, Alexander Ryota Keeley, Ken'ichi Matsumoto, Kenta Tanaka, Shunsuke Managi

    Renewable and Sustainable Energy Reviews   189   114037 - 114037   2024.1   ISSN:1364-0321

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    Language:Others   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.rser.2023.114037

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    Repository Public URL: https://hdl.handle.net/2324/7182009

  • Buy and/or Pay Disparity: Evidence from Fully Autonomous Vehicles

    Sunbin Yoo, Junya Kumagai, Yuta Kawabata, Alexander Ryota Keeley, Shunsuke Managi

    Applied Sciences   14 ( 1 )   410 - 410   2024.1   eISSN:2076-3417

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    Language:Others   Publishing type:Research paper (scientific journal)   Publisher:MDPI AG  

    This study investigates the impact of environmental concerns, concerns about potential accidents, and the perceived advantages of fully autonomous vehicles on individuals’ willingness to buy and the perceived value of these vehicles. Our research, conducted through a comprehensive survey with over 180,000 respondents in Japan and analyzed using structural equation modeling, reveals a nuanced disparity between willingness to buy and perceived value. We find that individuals concerned with the conservation of the natural environment are more likely to purchase fully autonomous vehicles due to their broader interest in societal issues and belief in the potential of new technologies like fully autonomous vehicles as solutions. However, these individuals attribute a lower perceived value to these vehicles, mainly because their adoption does not directly contribute to the conservation of the natural environment. Additionally, our results show that those recognizing the potential advantages of fully autonomous vehicle technology have a higher willingness to buy and perceived value, while those with apprehensions about the technology are less likely to purchase and attribute a lower perceived value to these vehicles. This study offers vital insights for policy and planning, highlighting the complex interplay of factors influencing the willingness to buy and perceived value of fully autonomous vehicles, critical for strategizing their adoption.

    DOI: 10.3390/app14010410

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  • Editorial: Sustainametrics—Envisioning a sustainable future with data science Reviewed

    Shutaro Takeda, Alexander R. Keeley, Tom Gloria, Shunsuke Managi

    Frontiers in Sustainability   4   2023.7   eISSN:2673-4524

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    Language:Others   Publishing type:Research paper (scientific journal)  

    DOI: 10.3389/frsus.2023.1130622

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    Repository Public URL: https://hdl.handle.net/2324/7182008

  • How Many Years Away is Fusion Energy? A Review Reviewed

    Shutaro Takeda, Alexander Ryota Keeley, Shunsuke Managi

    JOURNAL OF FUSION ENERGY   42 ( 1 )   2023.6   ISSN:0164-0313 eISSN:1572-9591

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:SPRINGER  

    DOI: 10.1007/s10894-023-00361-z

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    Repository Public URL: https://hdl.handle.net/2324/7182007

  • How Many Years Away is Fusion Energy? A Review

    Takeda Shutaro, Keeley Alexander Ryota, Managi Shunsuke

    Journal of Fusion Energy   42   2023.5   ISSN:01640313 eISSN:15729591

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  • Do investors incorporate financial materiality? Remapping the environmental information in corporate sustainability reporting Reviewed

    Jun Xie, Yoshitaka Tanaka, Alexander Ryota Keeley, Hidemichi Fujii, Shunsuke Managi

    CORPORATE SOCIAL RESPONSIBILITY AND ENVIRONMENTAL MANAGEMENT   30 ( 6 )   2924 - 2952   2023.5   ISSN:1535-3958 eISSN:1535-3966

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:WILEY  

    Although the consideration of financial materiality is important for securing shareholders' interests, the degree of financial materiality that is considered for existing sustainability ratings is still questionable. In this study, we hand-mapped the financial materiality of environmental information based on Sustainability Accounting Standards Board (SASB) industry-specific accounting metrics to reassess environmental performance. Based on the SASB-based environmental score, we tested whether investors price environmental risk. The results show significant pricing anomalies related to environmental risk. Companies with lower SASB-based environmental scores experience higher environmental risk. Additionally, a premium in the cross-section of stock returns compensates for this risk. Our findings suggest that integrating financial materiality based on the SASB could be an effective way to capture corporate environmental risk.

    DOI: 10.1002/csr.2524

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    Repository Public URL: https://hdl.handle.net/2324/7182006

  • Potential for reducing CO2 emissions from passenger cars in Japan by 2030 to achieve carbon neutrality Reviewed

    Dyah Ika Rinawati, Alexander Ryota Keeley, Shutaro Takeda, Norihiro Itsubo, Shunsuke Managi

    IATSS Research   47 ( 2 )   185 - 195   2023.3   ISSN:03861112 eISSN:2210-4240

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELSEVIER SCI LTD  

    For Japan to achieve its targets for carbon neutrality and reduction of carbon dioxide (CO_2) emissions, decarbonization of road transport is essential. Japan regards next-generation vehicles, including hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), battery electric vehicles (BEVs), and fuel cell vehicles, as a key means of reducing carbon emissions from road transport. Four scenarios were proposed to predict the potential carbon emissions reduction of passenger car use in 2030: baseline, business-as-usual, government's target-based, and aggressive scenarios. Economic input–output life cycle assessment was used to evaluate potential CO_2 emissions, acidification, eutrophication, human toxicity, and photochemical oxidation associated with passenger cars. In this study, all environmental impacts were calculated using the multi-regional environmentally extended supply and use/input–output database by applying the CML 2001 impact assessment method. The findings indicate that PHEVs have the lowest CO_2 emissions per km traveled, followed by HEVs and BEVs. The prediction for carbon emissions from passenger cars shows that adopting electrified vehicles, such as HEVs, PHEVs, and BEVs could help decarbonize the passenger car sector. The population of vehicles, vehicle manufacturing, well-to-wheel cycle of fuel, and fuel economy will significantly contribute to CO_2 emissions. Finally, this study recommends policies to steer Japan into achieving its goal of carbon neutrality.

    DOI: 10.1016/j.iatssr.2023.02.004

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    Repository Public URL: https://hdl.handle.net/2324/7182005

  • Revisiting the Value of Various Ecosystems: Considering Spatiality and Disaster Concern

    Komatsubara Kento, Keeley Alexander Ryota, Managi Shunsuke

    Sustainability   15 ( 4 )   3154   2023.2   eISSN:20711050

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    Recently, concerns about ecosystem loss and the threat of disasters have emerged. Understanding people’s perception of the ecosystem’s value will lead to disaster adaptation through ecosystem conservation. We incorporated use and disaster attributes into a contingent valuation study to investigate Japanese peoples’ perceptions of the value of various ecosystems. We construct a concept representing ecosystems’ perceived disaster prevention and mitigation functions by investigating the effects of use status and disaster concerns on people’s preferences. Results revealed that almost all of the ecosystem’s disaster prevention and mitigation functions are not perceived by people. In some cases, people mistakenly avoid ecosystems that protect people from disasters. In conclusion, this concept and its findings facilitate an understanding of people’s perceptions of disaster prevention mitigation functions of ecosystems and promote the concrete practice of conserving ecosystems.

    CiNii Research

  • Editorial: Sustainametrics—Envisioning a sustainable future with data science

    Takeda Shutaro, Keeley Alexander R., Gloria Tom, Managi Shunsuke

    Frontiers in Sustainability   4   2023.2   eISSN:26734524

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  • Revisiting the Value of Various Ecosystems: Considering Spatiality and Disaster Concern Reviewed

    Kento Komatsubara, Alexander Ryota Keeley, Shunsuke Managi

    SUSTAINABILITY   15 ( 4 )   2023.2   eISSN:2071-1050

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:MDPI  

    Recently, concerns about ecosystem loss and the threat of disasters have emerged. Understanding people's perception of the ecosystem's value will lead to disaster adaptation through ecosystem conservation. We incorporated use and disaster attributes into a contingent valuation study to investigate Japanese peoples' perceptions of the value of various ecosystems. We construct a concept representing ecosystems' perceived disaster prevention and mitigation functions by investigating the effects of use status and disaster concerns on people's preferences. Results revealed that almost all of the ecosystem's disaster prevention and mitigation functions are not perceived by people. In some cases, people mistakenly avoid ecosystems that protect people from disasters. In conclusion, this concept and its findings facilitate an understanding of people's perceptions of disaster prevention mitigation functions of ecosystems and promote the concrete practice of conserving ecosystems.

    DOI: 10.3390/su15043154

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    Repository Public URL: https://hdl.handle.net/2324/7182003

  • The Ultimate Owner of Environmental, Social, and Governance Investment Reviewed

    Alexander R. Keeley, Chao Li, Shutaro Takeda, Tom Gloria, Shunsuke Managi

    Frontiers in Sustainability   3   2022.11   eISSN:2673-4524

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    The coronavirus (COVID-19) pandemic has affected society in immeasurable ways, including investment. As the pandemic has impacted society's values, it has proven to be a major turning point for environmental, social, and governance (ESG) investment. This investment approach, which evaluates a company's ESG ratings alongside traditional financial metrics, was already “coming off a banner year,” and its reach continues to expand. Although numerous studies have investigated the impact of ESG scores on financial returns and the trend in ESG investment strategies, only a limited number of studies have attempted to capture the key players in ESG investment. Therefore, to determine the most influential investors in the ESG investment field, the cumulative impacts are calculated based on the ESG scores of invested companies, the total market price of invested companies, and the investor history portfolio report. We perform an iteration of calculation to convey the impacts that the invested companies have on the ultimate investors, and we identify the major players in the field and differences in the trend by type of investor and country.

    DOI: 10.3389/frsus.2022.909239

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    Repository Public URL: https://hdl.handle.net/2324/7161197

  • The impact of weather changes on the supply and demand of electric power and wholesale prices of electricity in Germany Reviewed

    Kenta Tanaka, Ken'ichi Matsumoto, Alexander Ryota Keeley, Shunsuke Managi

    SUSTAINABILITY SCIENCE   17 ( 5 )   1813 - 1825   2022.9   ISSN:1862-4065 eISSN:1862-4057

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    Weather conditions critically affect electricity demand. Recently, weather changes have also affected the electricity supply because renewable energy sources have been diffused. Some studies have revealed that weather conditions affect electricity supply or demand. However, few studies have revealed the integrated effects of weather changes on the electricity supply, demand, and market prices. This study aims to reveal the regional weather impact on the German electricity spot market based on combined hourly weather and electricity market data using structural equation modeling. Our results reveal that weather changes affect both demand and supply. First, the effect of weather on electricity supply differs in each state. Our estimation results show a more complex effect of an increase in solar radiation. Second, the electricity demand is also affected by weather conditions, particularly by temperature. Additionally, regional differences in weather conditions create a complex structure of electricity supply and demand. Our results indicate that extreme weather events in specific areas have a significant impact on the electricity market price.

    DOI: 10.1007/s11625-022-01219-7

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  • The Ultimate Owner of Environmental, Social, and Governance Investment

    Keeley Alexander R., Li Chao, Takeda Shutaro, Gloria Tom, Managi Shunsuke

    Frontiers in Sustainability   3   2022.7   eISSN:26734524

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    Language:English  

    The coronavirus (COVID-19) pandemic has affected society in immeasurable ways, including investment. As the pandemic has impacted society’s values, it has proven to be a major turning point for environmental, social, and governance (ESG) investment. This investment approach, which evaluates a company’s ESG ratings alongside traditional financial metrics, was already “coming off a banner year,” and its reach continues to expand. Although numerous studies have investigated the impact of ESG scores on financial returns and the trend in ESG investment strategies, only a limited number of studies have attempted to capture the key players in ESG investment. Therefore, to determine the most influential investors in the ESG investment field, the cumulative impacts are calculated based on the ESG scores of invested companies, the total market price of invested companies, and the investor history portfolio report. We perform an iteration of calculation to convey the impacts that the invested companies have on the ultimate investors, and we identify the major players in the field and differences in the trend by type of investor and country.

    CiNii Research

  • Questioning the Sun: Unexpected emissions implications from residential solar photovoltaic systems Reviewed

    Akihiro Okuyama, Sunbin Yoo, Junya Kumagai, Alexander Ryota Keeley, Shunsuke Managi

    RESOURCES CONSERVATION AND RECYCLING   176   105924 - 105924   2022.1   ISSN:0921-3449 eISSN:1879-0658

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    Reaching carbon neutrality would require the retirement of conventional power sources and substitution with renewable energy sources. Given that immediate substitution from conventional to renewable power sources is not feasible in the status quo, we investigate whether adding residential solar photovoltaic (PV) technology in addition to conventional power sources would reduce residential emissions. We use a large survey dataset of more than 300,000 observations and employ a structural equation model (SEM) to validate our findings. Interestingly, emissions increase by 1.75% if residential PV is adopted, and Japanese citizens with residential PV systems end up using 3.02% more electricity. We also find that pro-environmental consumers may also produce more emissions with PVs. As a result, reaching target carbon reductions in the residential sector would necessitate eliminating conventional energy sources. We address the policy implications for pathways to reduce residential emissions.

    DOI: 10.1016/j.resconrec.2021.105924

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  • Analysis of Factors Affecting Willingness to Pay for Renewable Energy Incorporating Spatial Information Invited Reviewed

    Kento Komatsubara, Alexander Ryota Keeley, Shunsuke Managi

    ( 62 )   17 - 22   2021.3

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  • Motivations, Enabling Factors and Barriers to the Energy Transition in Indonesia and Vietnam Reviewed

    D. Ialnazov, A. Keeley

    IOP Conference Series: Earth and Environmental Science   505 ( 1 )   2020.7

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    DOI: 10.1088/1755-1315/505/1/012044

  • 日本における小水力発電の普及に係る障壁と課題 ―事業主体の視点から― Reviewed

    井上 博成, KEELEY Alexander 竜太

    日本エネルギー学会誌   97 ( 8 )   245 - 251   2018.8

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    本研究は,日本における小水力発電の普及に係る障壁と課題について,事業主体の視点から明らかとすることを目的とする。筆者らが小水力発電事業実施地域に入り込み行ってきた参与観察及び小水力発電事業者への聞き取り調査とアンケート,そして先行研究を基に,小水力発電の普及に係る障壁と課題を事業主体の視点から8つ特定し,大きく次の3つのカテゴリーに整理を行った:政治的要因カテゴリー,技術・インフラ的要因カテゴリー,事業主体形成・計画・資金調達要因カテゴリー。 小水力発電事業者へのアンケートを基に,特定された各要因の重要度を,階層化意思決定法を用いて分析し,各要因の重み付けを行った。再生可能エネルギー全般において障壁となっている系統連系の問題に加えて,小水力発電には多くの許認可手続きの課題,地域住民との関わり方を含めた事業主体の形成の重要性,長期を要する開発期間の短縮のための事業計画の重要性等が確認された。これらの課題を踏まえた事業主体の形成,資金調達,そして地域住民や各種ステークホルダーとの調整を行っていくことがこれからの小水力発電の普及において重要であると考察される。本研究は,事業主体の視点に焦点をあてることによって,小水力発電の普及に係る障壁と課題を詳細に明らかにしている。

    DOI: 10.3775/jie.97.245

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Books

  • ネットワーク科学: ひと・もの・ことの関係性をデータから解き明かす新しいアプローチ

    Albert-László Barabási 著, 池田 裕一, 井上 寛康, 谷澤 俊弘 監訳, キーリーアレクサンダー竜太 共訳( Role: Joint translator)

    共立出版  2019.2 

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    Language:Japanese   Book type:Scholarly book

Presentations

  • 世界におけるESGマネジメントの潮流 -日本発の標準化への道のり- Invited

    キーリーアレクサンダー竜太

    PMI日本支部2024年 1月度月例セミナー  2024.1 

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    Event date: 2024.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • ESG Assessment for Products and Services: Research and Practice Invited International conference

    Mirai Open Day  2023.11 

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    Event date: 2024.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:Sweden  

  • 革新的技術のサステナビリティ:技術開発におけるESGマネジメント Invited

    キーリーアレクサンダー竜太

    化学工学会第54回秋季大会  2023.9 

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    Event date: 2024.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:福岡大学   Country:Japan  

  • Measuring Environment, Social, Economic Impact of Energy Technologies Considering Supply Chain – A Novel Integrated Assessment Method Invited International conference

    キーリーアレクサンダー竜太

    2021.6 

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    Event date: 2021.6

    Language:English   Presentation type:Oral presentation (general)  

    Venue:日本   Country:Japan  

  • Sustainability Modeling: Challenges and Solutions Invited International conference

    WORKSHOP ON ADVANCING METHODS FOR MODELING SYSTEMS TO INFORM SUSTAINABILITY SCIENCE  2021.6 

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    Event date: 2021.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  • Renewable Energy and Energy Market: Supply Impact and Demand Change Invited International conference

    Kyushu-Illinois Strategic Partnership Colloquia Series #3 Environmental Economics  2021.5 

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    Event date: 2021.5

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Measuring environmental, social, and governance impacts of DAC-U system: an integrated assessment method Invited International conference

    Kyushu-Illinois Strategic Partnership Colloquia Series  2021.1 

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    Event date: 2021.1

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • The Value of Invisibility: Factors Affecting Willingness to Pay for Renewable Energy International conference

    15th CONFERENCE ON SUSTAINABLE DEVELOPMENT OF ENERGY WATER AND ENVIRONMENT SYSTEMS  2020.9 

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    Event date: 2020.9 - 2021.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Germany  

  • 新国富指標と持続可能性 Invited International conference

    キーリーアレクサンダー竜太

    水俣環境アカデミア  2020.5 

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    Event date: 2020.5

    Language:English   Presentation type:Oral presentation (general)  

    Venue:日本   Country:Japan  

  • Merit Order Effect: The Impact of Renewable Energy Generation on the Spot Market Price in Germany Invited International conference

    CREST Workshop, Economics-Engineering Modeling for Global and Long-term Issues: Climate Change, Energy and Social Development  2020.3 

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    Event date: 2020.3

    Language:English  

    Country:Japan  

  • エネルギー技術の持続可能性価値評価モデルの構築及び技術開発への適用

    キーリーアレクサンダー竜太

    エネルギーウィーク2024 モジュール研究講演  2024.1 

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    Event date: 2024.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学   Country:Japan  

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MISC

  • 学者が斬る 視点争点 ESGは企業経営にどれだけプラスか

    キーリー アレクサンダー竜太

    エコノミスト   2023.8

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    Language:Japanese  

  • 学者が斬る 視点争点 ESGは企業経営にどれだけプラスか

    キーリー アレクサンダー竜太

    エコノミスト   101 ( 29 )   46 - 47   2023.8   ISSN:0013-0621

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  • 学者が斬る 視点争点 サプライチェーンのESG基準強化

    キーリー・アレクサンダー 竜太

    エコノミスト   101 ( 18 )   38 - 39   2023.5   ISSN:0013-0621

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  • 学者が斬る 視点争点 サプライチェーンのESG基準強化

    キーリー・アレクサンダー 竜太

    エコノミスト   2023.5

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  • 学者が斬る 視点争点 SDGsに貢献する「グリーンボンド」

    キーリー アレクサンダー竜太

    エコノミスト   2023.3

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  • 学者が斬る 視点争点 SDGsに貢献する「グリーンボンド」

    キーリー アレクサンダー竜太

    エコノミスト   101 ( 24 )   50 - 51   2023.3   ISSN:0013-0621

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  • Nuclear fusion development by private sector (1): What is happening in the private fusion industry now

    Takeda Shutaro, Keeley Alexander Ryota, Managi Shunsuke

    Journal of the Atomic Energy Society of Japan   64 ( 10 )   553 - 556   2022.12   ISSN:1882-2606 eISSN:2433-7285

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    Language:Japanese   Publisher:Atomic Energy Society of Japan  

    Nuclear fusion development by private sector (1): What is happening in the private fusion industry now

    DOI: 10.3327/jaesjb.64.10_553

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  • A systematic review of the techno-economic assessment of various hydrogen production methods of power generation Reviewed

    Zulfhazli, Alexander Ryota Keeley, Shutaro Takeda, Shunsuke Managi

    Frontiers in Sustainability   3   2022.12   eISSN:2673-4524

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    Hydrogen is a low or zero-carbon energy source that is considered the most promising and potential energy carrier of the future. In this study, the energy sources, feedstocks, and various methods of hydrogen production from power generation are comparatively investigated in detail. In addition, this study presents an economic assessment to evaluate cost-effectiveness based on different economic indicators, including sensitivity analysis and uncertainty analysis. Proton exchange membrane fuel cell (PEMFCs) technology has the most potential to be developed compared to several other technologies. PEMFCs have been widely used in various fields and have advantages (i.e., start-up, zero-emissions, high power density). Among the various sources of uncertainty in the sensitivity analysis, the cost estimation method shows inflationary deviations from the proposed cost of capital. This is due to the selection process and untested technology. In addition, the cost of electricity and raw materials, as the main factors that are unpredictable.

    DOI: 10.3389/frsus.2022.943145

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  • ESG metrics and social equity: Investigating commensurability Reviewed

    Alexander R. Keeley, Andrew J. Chapman, Kenichi Yoshida, Jun Xie, Janaki Imbulana, Shutaro Takeda, Shunsuke Managi

    Frontiers in Sustainability   3   2022.12   eISSN:2673-4524

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    During the past two decades, the world has seen exponential growth in the number of companies reporting environmental, social, and governance (ESG) data, and various ESG metrics have been proposed and are now in use. ESG metrics play a crucial role as an enabler of investment strategies that consider ESG factors, which are often referred to as “ESG investments”. The ESG metrics and investment market are evolving rapidly, as investors, corporations, and the public are giving more priority to the “S” in ESG, including social equity issues, such as diversity, income inequality, worker safety, systemic racism, and companies' broader role in society. In this critical, systematic review, utilizing in-depth assessments, we investigate and compare the approaches employed in major ESG metrics and studies, then, we shed light on the “S” aspect by reviewing existing approaches used to assess social equity to clarify commensurability with ESG. Through the systematic review, this paper confirms that ESG investments can be expected to provide stable and high returns especially over the long term. This paper also clarifies how elements considered in social equity studies are largely reflected in major ESG metrics.

    DOI: 10.3389/frsus.2022.920955

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  • Life-cycle assessment of hydrogen utilization in power generation: A systematic review of technological and methodological choices Reviewed

    Dyah Ika Rinawati, Alexander Ryota Keeley, Shutaro Takeda, Shunsuke Managi

    Frontiers in Sustainability   3   2022.9   eISSN:2673-4524

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    Interest in reducing the greenhouse gas emissions from conventional power generation has increased the focus on the potential use of hydrogen to produce electricity. Numerous life-cycle assessment (LCA) studies of hydrogen-based power generation have been published. This study reviews the technological and methodological choices made in hydrogen-based power generation LCAs. A systematic review was chosen as the research method to achieve a comprehensive and minimally biased overview of hydrogen-based power generation LCAs. Relevant articles published between 2004 and 2021 were identified by searching the Scopus and Web of Science databases. Electrolysis from renewable energy resources was the most widely considered type of hydrogen production in the LCAs analyzed. Fuel cell technology was the most common conversion equipment used in hydrogen-based electricity LCAs. A significant number of scenarios examine the use of hydrogen for energy storage and co-generation purposes. Based on qualitative analysis, the methodological choices of LCAs vary between studies in terms of the functional units, allocations, system boundaries, and life-cycle impact assessment methods chosen. These discrepancies were likely to influence the value of the environmental impact results. The findings of the reviewed LCAs could provide an environmental profile of hydrogen-based electricity systems, identify hotspots, drive future research, define performance goals, and establish a baseline for their large-scale deployment.

    DOI: 10.3389/frsus.2022.920876

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  • A systematic review of life cycle assessment of hydrogen for road transport use Reviewed

    Dyah Ika Rinawati, Alexander Ryota Keeley, Shutaro Takeda, Shunsuke Managi

    Progress in Energy   4 ( 1 )   2022.1   eISSN:2516-1083

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    This study conducted a systematic literature review of the technical aspects and methodological choices in life cycle assessment (LCA) studies of the use of hydrogen for road transport. More than 70 scientific papers published during 2000-2021 were reviewed, in which more than 350 case studies of the use of hydrogen in the automotive sector were found. Only some studies used hybrid LCA and energetic input-output LCA, whereas most studies addressed attributional process-based LCA. A categorization based on the life cycle scope distinguished case studies that addressed the well-to-tank (WTT), well-to-wheel (WTW), and complete life cycle approaches. Furthermore, based on the hydrogen production process, these case studies were classified into four categories: Thermochemical, electrochemical, thermal-electrochemical, and biochemical. Moreover, based on the hydrogen production site, the case studies were classified as centralized, on-site, and on-board. The fuel cell vehicle passenger car was the most commonly used vehicle. The functional unit for the WTT studies was mostly mass or energy, and vehicle distance for the WTW and complete life cycle studies. Global warming potential (GWP) and energy consumption were the most influential categories. Apart from the Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation model and the Intergovernmental Panel on Climate Change for assessment of the GWP, the Centrum voor Milieukunde Leiden method was most widely used in other impact categories. Most of the articles under review were comparative LCA studies on different hydrogen pathways and powertrains. The findings provide baseline data not only for large-scale applications, but also for improving the efficiency of hydrogen use in road transport.

    DOI: 10.1088/2516-1083/ac34e9

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  • 新国富指標 : 持続可能な地域づくりのために—特集 新国富指標を用いた持続可能な地域づくり

    キーリーアレクサンダー 竜太, 馬奈木 俊介

    九州経済調査月報 = Monthly bulletin of Kyushu economic research / 九州経済調査協会 編   2020.11

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  • 再生可能エネルギーに対する海外直接投資の決定要因と中国の風力発電市場の発展経路

    キーリー アレクサンダー竜太

    21世紀東アジア社会学   2018.3

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    DOI: 10.20790/easoc.2018.9_21

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Professional Memberships

  • The International Association for Energy Economics

  • Society of Global Business

Committee Memberships

  • Vice-chairman   Domestic

    2020.10 - Present   

Academic Activities

  • セッションチェア International contribution

    2020.9

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    Type:Competition, symposium, etc. 

    Number of participants:120

  • Screening of academic papers

    Role(s): Peer review

    2020

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:11

    Number of peer-reviewed articles in Japanese journals:1

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

Research Projects

  • 空間情報を考慮した各再生可能エネルギーの社会的受容性に関する研究

    2021.4 - 2023.3

    日本学術振興会(JSPS) 

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    Authorship:Principal investigator 

  • 空間情報を考慮した各再生可能エネルギーの社会的受容性に関する研究

    Grant number:21K17927  2021 - 2023

    日本学術振興会  科学研究費助成事業  基盤研究(C)

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    Grant type:Scientific research funding

  • 空間情報を考慮した各再生可能エネルギーの社会的受容性に関する研究

    Grant number:21K17927  2021 - 2023

    日本学術振興会  科学研究費助成事業  若手研究

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 水素エネルギー導入価値評価手法に関する調査研究 International coauthorship

    2020.12 - 2022.3

    国立研究開発法人 新エネルギー・産業技術総合開発機構(NEDO) 

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    Authorship:Coinvestigator(s) 

  • “ビヨンド・ゼロ”社会実現に向けた CO₂循環システムの研究開発 International coauthorship

    2020.10 - 2024.3

    国立研究開発法人 新エネルギー・産業技術総合開発機構(NEDO) 

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    Authorship:Coinvestigator(s) 

  • 社会の価値を内包した持続可能な発展の重層的ガバナンス

    2020.6 - 2022.3

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    Authorship:Coinvestigator(s) 

  • 社会の価値を内包した持続可能な発展の重層的ガバナンス

    Grant number:20H00648  2020 - 2024

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    馬奈木 俊介, 金子 慎治, 加河 茂美, 藤井 秀道, 田中 健太, キーリー アレクサンダー・竜太, 松八重 一代, 小谷 浩示, 谷川 寛樹

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    Grant type:Scientific research funding

    本研究は、人々の価値認識の変化を明示的に考慮した統合的な持続可能性評価モデルの構築を行うことを目的としている。そのために、行動科学アプローチによる内的要因変化と社会的価値形成メカニズムの解明を行い、内的要因変化を明示的に考慮した新国富指標の構築と推計、そして外的要因の影響も考慮した新国富指標の将来シミュレーションモデルの構築を行う。最終的には構築されたモデルを用いて、シミュレーション結果に基づく政策導入の社会実験とモデルの検証・再評価を行う。これらのアプローチにより、各地域の特性に応じた形で持続可能性を高める取り組みの優先度を明らかにすることが可能となる。

    CiNii Research

  • “ビヨンド・ゼロ”社会実現に向けた CO₂循環システムの研究開発

    2020 - 2024

    科学研究費助成事業  国立研究開発法人 新エネルギー・産業技術総合開発機構 調査研究

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    Authorship:Coinvestigator(s)  Grant type:Competitive funding other than Grants-in-Aid for Scientific Research

  • 水素エネルギー導入価値評価手法に関する調査研究

    2020 - 2023

    科学研究費助成事業  国立研究開発法人 新エネルギー・産業技術総合開発機構 調査研究

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    Authorship:Coinvestigator(s)  Grant type:Competitive funding other than Grants-in-Aid for Scientific Research

  • 社会の価値を内包した持続可能な発展の重層的ガバナンス

    2020 - 2022

    日本学術振興会  科学研究費助成事業  基盤研究(A)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • ESGファクターと企業価値等に関する研究

    2018.4 - 2021.3

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    Authorship:Principal investigator 

    企業価値に対するESGの各構成要素の相関関係並びに“E”要素の比較優位性と“SG”要素との包含関係を含むホリスティックな分析等を、以下のアプローチから実施:
    ① 経営者評価とESGの関係について、帝国データバンクからの経営指標(経年での数値評価、評価委員がマニュアルに基づいて客観的に経営者評価)とESGスコア(東洋経済からのデータ)でのプロット。
    ② ESGがROEやROA等の資本効率性に対しどのような影響があるかのプロット(例えば、縦軸がROA、横軸がESG等)。データはブルームバーグより取得し、国内企業と国際企業で比較するほか、北米や欧州等の企業データ(他国調査)と日本企業との比較検討を行うことも想定。
    ③ このほか各種企業データとESGスコアとの関係性理解の向上に資する実証研究を実施。 等

  • ESGファクターと企業価値等に関する研究

    2018 - 2020

    科学研究費助成事業  環境省 第Ⅳ期環境経済の政策研究

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    Authorship:Principal investigator  Grant type:Competitive funding other than Grants-in-Aid for Scientific Research

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Educational Activities

  • Research focusing on analysis of financial aspect and economic, environment, social impact of Energy and Environment sector.

Class subject

  • プロジェクトまちづくり(改訂版)

    2024.10 - Present  

  • 土木エンジニア史

    2024.10 - Present  

  • 環境と防災A

    2023.11 - Present   Winter quarter

  • プロジェクト・まちづくり

    2023.6 - 2023.8   Summer quarter

  • 都市計画

    2022.12 - 2023.2   Winter quarter

  • 都市計画

    2021.12 - 2022.2   Winter quarter

  • プロジェクト・まちづくり

    2021.6 - 2021.8   Summer quarter

  • 都市計画

    2020.12 - 2021.2   Winter quarter

  • プロジェクト・まちづくり

    2020.6 - 2020.8   Summer quarter

  • 都市工学・経済学

    2020.4 - 2020.9   First semester

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Visiting, concurrent, or part-time lecturers at other universities, institutions, etc.

  • 2019  筑紫女学園大学  Classification:Part-time lecturer  Domestic/International Classification:Japan 

  • 2018  長崎大学  Classification:Intensive course  Domestic/International Classification:Japan 

  • 2018  筑紫女学園大学  Classification:Part-time lecturer 

Outline of Social Contribution and International Cooperation activities

  • As one of the young researchers from Kyushu University, I gave an invited lecture at the first and third symposiums of the "Kyushu-Illinois Strategic Partnership Colloquia Series" with the University of Illinois, with which a strategic partnership was established in August 2019. I was also invited to the workshop "Workshop on advancing methods for modeling systems to inform sustainability science," which was organized by prominent scholars working on sustainability mainly in Europe and the United States, with the aim of establishing an international research project. We were invited to the workshop, "Workshop on advancing methods for modeling systems to inform sustainability science," which was held by prominent scholars who are doing research on sustainability.