有賀 健高(アルガ ケンタカ)
人文社会科学研究科 経済学研究領域教授
経済学部 経済学科

研究者情報

■ 学位
  • 環境資源経済学博士, The University of Rhode Island
  • 経済学修士, 東京大学
■ 研究キーワード
  • グリーンボンド
  • 選択実験
  • 利他主義
  • エネルギー経済学
  • 消費者意識
  • 消費者行動
  • 環境経済学
  • 資源経済学
  • 共和分
  • 市場統合
■ 研究分野
  • 人文・社会, 経済政策, 環境資源経済学
■ 研究シーズ
  • 環境意識に関するアンケート調査, 環境意識の国際比較研究
  • エコ・ツーリズム、グリーン・ツーリズム, 日本のエコ・ツーリズムの現状に関する研究
  • エネルギー市場、構造変化, エネルギー市場と構造変化の関係に関する調査研究
■ 経歴
  • 2017年04月 - 現在, 埼玉大学, 大学院人文社会科学研究科
  • 2012年04月 - 2017年03月, 石川県立大学, 生物資源環境学部, 日本国
  • 2010年04月 - 2012年03月, 地球環境戦略研究機関, 研究員, 日本国
  • 2004年09月 - 2010年05月, ロードアイランド大学, 環境資源経済学科, アメリカ合衆国
  • 2001年04月 - 2004年08月, 東京大学, 大学院経済学研究科
  • 2003年04月 - 2003年08月, チューリッヒ工科大学, 客員研究員, スイス連邦
■ 学歴
  • 2004年09月 - 2010年05月, ロードアイランド大学, 環境資源経済学科, アメリカ合衆国
  • 2001年04月 - 2003年03月, 東京大学, 経済学研究科, 経済学研究科, 日本国
  • 1997年04月 - 2001年03月, 東京大学, 経済学部
■ 委員歴
  • 2024年09月 - 現在
    加須市, 加須市ゼロカーボンシティ推進協議会 委員, 自治体
  • 2024年04月 - 現在
    さいたま市, さいたま市SDGs企業認証審査会
  • 2023年 - 現在
    埼玉県, 埼玉県サーキュラーエコノミー型ビジネス創出事業費補助金 審査委員, 自治体
  • 2022年04月 - 現在
    入間市, 入間市廃棄物減量等推進審議会
  • 2019年04月 - 現在
    環境情報科学センター, 学術委員, 学協会
  • 2015年 - 2016年
    野々市市, 野々市市墓地整備等検討委員, 自治体
■ 受賞
  • 2022年12月, 学術論文賞, 環境情報科学センター
  • 2017年06月, 学術論文奨励賞, 環境情報科学センター賞
    有賀 健高
  • 2016年09月, 奨励賞, 環境経済・政策学会
    有賀 健高

業績情報

■ 論文
  • The Impact of Fossil Fuel Market Fluctuations on the Japanese Electricity Market During the COVID-19 Era               
    Kentaka Aruga; Md. Monirul Islam; Arifa Jannat
    Commodities, 巻:4, 号:2, 開始ページ:6, 2025年05月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/commodities4020006
    DOI ID:10.3390/commodities4020006, ORCID:184115732
  • The Spatial Impact of PM2.5 Pollution on Economic Growth from 2012 to 2022: Evidence from Satellite and Provincial-Level Data in Thailand               
    Thanakhom Srisaringkarn; Kentaka Aruga
    Urban Science, 巻:9, 号:4, 開始ページ:110, 2025年04月, [査読有り], [招待有り], [最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/urbansci9040110
    DOI ID:10.3390/urbansci9040110, ORCID:181586615
  • Assessing investor preferences for environmental and sustainability bonds in Japan: A discrete choice experiment approach               
    Aruga, K.; Islam, Md. M.
    Green Finance, 巻:7, 号:2, 開始ページ:200, 終了ページ:222, 2025年03月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3934/GF.2025008
    DOI ID:10.3934/GF.2025008, 共同研究・競争的資金等ID:45298498
  • Revealing the Interrelationship of Economic, Environmental, and Social Factors with Globalization in G-7 Countries Tourism Growth: A CS-ARDL Approach               
    Arifa Janna; Md Monirul Islam; Kentaka Aruga
    Sustainable Futures, 巻:9, 開始ページ:100483, 終了ページ:100483, 2025年02月, [査読有り], [最終著者]
    Elsevier BV, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.sftr.2025.100483
    DOI ID:10.1016/j.sftr.2025.100483, ISSN:2666-1888
  • Harnessing complexity: integrating remote sensing and fuzzy expert system for evaluating land use land cover changes and identifying mangrove forest vulnerability in Bangladesh
    Islam, M.M.; Al Rafi, D.A.; Jannat, A.; Aruga, K.; Liebenehm, S.; Hossain, R.
    Journal of Coastal Conservation, 巻:29, 号:1, 2025年01月, [査読有り], [最終著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/s11852-024-01093-8
    DOI ID:10.1007/s11852-024-01093-8, ISSN:1874-7841, ORCID:179943375, SCOPUS ID:85217397222
  • 個人投資家の環境意識が環境債への投資意欲に及ぼす影響               
    健高 有賀; 夏椰 篠村
    環境情報科学論文集, 巻:38, 開始ページ:39, 終了ページ:44, 2024年12月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    日本語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.11492/ceispapers.ceis38.0_39
    DOI ID:10.11492/ceispapers.ceis38.0_39, ORCID:179943691
  • Forecasting Foreign Direct Investment Inflow to Bangladesh: Using an Autoregressive Integrated Moving Average and a Machine Learning-Based Random Forest Approach               
    Md. Monirul Islam; Arifa Jannat; Kentaka Aruga; Md Mamunur Rashid
    Journal of Risk and Financial Management, 巻:17, 号:10, 開始ページ:451, 2024年10月, [査読有り], [筆頭著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/jrfm17100451
    DOI ID:10.3390/jrfm17100451, ORCID:169064120
  • Disaggregated Impact of Non-Renewable Energy Consumption on the Environmental Sustainability of the United States: A Novel Dynamic ARDL Approach               
    Tanmoy Kumar Ghose; Md Rezanual Islam; Kentaka Aruga; Arifa Jannat; Md. Monirul Islam
    Sustainability, 巻:16, 号:19, 開始ページ:8434, 2024年09月, [査読有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/su16198434
    DOI ID:10.3390/su16198434, ORCID:168435138
  • Assessing the CO2 Emissions and Energy Source Consumption Nexus in Japan               
    Kentaka Aruga; Md. Monirul Islam; Arifa Jannat
    Sustainability, 巻:16, 号:13, 開始ページ:5742, 終了ページ:5742, 2024年07月, [査読有り], [筆頭著者, 最終著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/su16135742
    DOI ID:10.3390/su16135742, ORCID:163055376
  • Comparing the willingness to invest returns among green, sustainability, and blue bonds
    Aruga, K.
    Journal of Environmental Management, 巻:364, 開始ページ:121458, 2024年07月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.jenvman.2024.121458
    DOI ID:10.1016/j.jenvman.2024.121458, ISSN:1095-8630, ORCID:179943383, SCOPUS ID:85195691214
  • Spatial effect of economic performance on the ecological footprint: evidence from Asian countries
    Qaisar Shahzad; Kentaka Aruga
    Environment, Development and Sustainability, 2024年06月, [査読有り], [最終著者, 責任著者]
    Springer Science and Business Media LLC, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/s10668-024-05134-y
    DOI ID:10.1007/s10668-024-05134-y, eISSN:1573-2975
  • Effects of the COVID-19 Pandemic on the Tokyo Wholesale Tuna Market
    Aruga, K.
    Journal of International Food and Agribusiness Marketing, 巻:36, 号:3, 開始ページ:447, 終了ページ:463, 2024年05月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1080/08974438.2022.2152518
    DOI ID:10.1080/08974438.2022.2152518, ISSN:1528-6983, ORCID:179943359, SCOPUS ID:85143402416
  • Investigating the Consumption Patterns of Japanese Seafood during the COVID-19 Pandemic               
    Kentaka Aruga; Hiroki Wakamatsu
    Commodities, 巻:3, 号:2, 開始ページ:182, 終了ページ:196, 2024年05月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/commodities3020012
    DOI ID:10.3390/commodities3020012, ORCID:160100749
  • Are retail investors willing to buy green bonds? A case for Japan
    Aruga, K.
    Journal of Sustainable Finance and Investment, 巻:15, 号:2, 開始ページ:388, 終了ページ:402, 2024年05月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1080/20430795.2024.2349723
    DOI ID:10.1080/20430795.2024.2349723, ISSN:2043-0809, ORCID:179943354, SCOPUS ID:85192781193
  • Comparing factors affecting Chinese institutional investors’ willingness to pay for green bonds in Beijing, Shanghai, and Shenzhen
    善野吉博; 有賀健高
    Cogent Business & Management, 巻:11, 号:1, 開始ページ:2292365, 2023年12月, [査読有り], [招待有り]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1080/23311975.2023.2292365
    DOI ID:10.1080/23311975.2023.2292365, ISSN:2331-1975, ORCID:179943379, SCOPUS ID:85179949536
  • The impacts of COVID-19 on seafood prices in Japan: A comparison between cheap and luxury products
    Kentaka Aruga; Md. Monirul Islam; Arifa Janna
    PLOS ONE, 巻:18, 号:10, 開始ページ:e0291395, 終了ページ:e0291395, 2023年10月, [筆頭著者, 最終著者, 責任著者]
    Like many other countries, the economy and society of Japan have been severely affected by the COVID-19 outbreak, and the fishery sector particularly seafood is no exception. Among seafood, since luxury seafood is more commonly consumed at restaurants it has a higher possibility of getting affected by the pandemic compared with cheap popular seafood for the masses. Considering this motivation, this study investigates the variations in the COVID-19 impact on luxury and cheap seafood prices in the Tokyo Toyosu wholesale market. Using the non-linear autoregressive distributed lag model (NARDL), the study identifies that an increase in the hours of stay-at-home during the initial stage of the pandemic is causing a negative influence on both cheap and luxury seafood prices and that this negative impact was severer in the luxury seafood prices. The study also finds a positive influence from the hours of stay-at-home on some cheap popular seafood like horse mackerel and sardine during the third state of emergency (SOE) where at least most of the elderly people have received their first vaccine dose but the negative impact from the SOE measure remained on luxury seafood. It is evident from the findings that the luxury seafood market is heavily dependent on the restaurant sector, which will likely suffer adverse effects when human mobility is restricted. In the event of a pandemic like COVID-19, policymakers should stabilize the price and provide subsidies to the luxury seafood stakeholders.
    Public Library of Science (PLoS), 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1371/journal.pone.0291395
    DOI ID:10.1371/journal.pone.0291395, eISSN:1932-6203, ORCID:143745492
  • Identifying factors affecting the preference for green bonds: a Japanese case study               
    Kentaka Aruga; Timothy Bolt
    Journal of Climate Finance, 巻:5, 開始ページ:100021, 終了ページ:100021, 2023年09月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    Elsevier BV, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.jclimf.2023.100021
    DOI ID:10.1016/j.jclimf.2023.100021, ISSN:2949-7280, ORCID:141529108
  • The Dynamic Correlation and Volatility Spillover among Green Bonds, Clean Energy Stock, and Fossil Fuel Market
    Tang, C.; Aruga, K.; Hu, Y.
    Sustainability (Switzerland), 巻:15, 号:8, 開始ページ:6586, 2023年04月, [査読有り], [最終著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/su15086586
    DOI ID:10.3390/su15086586, ISSN:2071-1050, ORCID:179943380, SCOPUS ID:85156161606
  • Does the Environmental Kuznets Curve Hold for Coal Consumption? Evidence from South and East Asian Countries
    Qaisar Shahzad; Kentaka Aruga
    Sustainability, 巻:15, 号:6, 開始ページ:5532, 終了ページ:5532, 2023年03月, [査読有り], [責任著者]
    Coal consumption plays a key role in achieving sustainable growth, although it also leads to significant environmental degradation. This study examines the environmental Kuznets curve (EKC) for coal consumption in South and East Asian countries from 1990 to 2020. We applied the augmented mean group (AMG) and common correlated mean group (CCEMG) estimators, which have several advantages over conventional panel techniques because it considers the endogeneity, slope heterogeneity, and cross-sectional dependency (CD). The study findings provide a comprehensive insight into the complex relationship between coal consumption and environmental degradation. The results show that EKC holds for coal consumption and reducing coal consumption is not enough to achieve environmental sustainability. The results also show that foreign investment and population positively impact coal consumption, while renewable energy negatively impacts coal consumption. This highlights that reducing coal consumption alone is not enough to reduce environmental degradation but there also needs to be a diversion of foreign investment inflow to the sustainable, environmentally friendly project. Furthermore, the share of renewable energy in total output is lower in South and East Asian countries, and it needs to be increased further. Furthermore, to promote renewable energy, foreign investment and population control may be necessary to achieve a sustainable environment while maintaining economic growth.
    MDPI AG, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/su15065532
    DOI ID:10.3390/su15065532, eISSN:2071-1050, ORCID:131361481
  • Investigating Factors Affecting Institutional Investors’ Green Bond Investments: Cases for Beijing and Shenzhen
    善野義博; 有賀健高
    Sustainability, 巻:15, 号:6, 開始ページ:4870, 終了ページ:4870, 2023年03月, [査読有り], [最終著者]
    We conducted a survey of institutional investors in Beijing and Shenzhen to analyze the factors affecting green bond (GB) investing in China, such as credit rating, GB issuer, fund use, liquidity, redemption term, certification label, and type of currency. We then compared the results for Beijing and Shenzhen, including factors that affected greenium and the two cities’ willingness to pay (WTP). Using a double-bounded dichotomous choice contingent valuation method, we find that higher credit ratings tend to increase Beijing investors’ WTP and that the use of GB proceeds affects Shenzhen investors’ WTP. We also find that investors place importance on the type of currency, length of redemption term, and liquidity when investing in GB, while the certification label does not have an impact on WTP. The WTP for GB was higher among Shenzhen investors than among Beijing investors. These findings provide important insights for the government and financial institutions to take the right action to expand the GB market and to establish a GB framework that induces the financial sector toward reducing greenhouse gas emissions.
    MDPI AG, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/su15064870
    DOI ID:10.3390/su15064870, eISSN:2071-1050, ORCID:130562145
  • Editorial: Consumption of cities under the effects of COVID-19 and climate change
    Aruga, K.; Matsumoto, K.; Wakamatsu, H.
    Frontiers in Sustainable Cities, 巻:5, 2023年01月, [査読有り], [招待有り], [筆頭著者, 最終著者, 責任著者]
    Frontiers Media SA, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3389/frsc.2023.1113709
    DOI ID:10.3389/frsc.2023.1113709, ISSN:2624-9634, eISSN:2624-9634, ORCID:179943362, SCOPUS ID:85147415388
  • Institutional Investors’ Willingness to Pay for Green Bonds: A Case for Shanghai
    Yoshihiro Zenno; Kentaka Aruga
    Journal of Risk and Financial Management, 巻:15, 号:11, 開始ページ:508, 終了ページ:508, 2022年11月, [査読有り], [責任著者]
    The issuance of green bonds has been increasing since 2016 in China, and the number of papers covering the topic is growing. In previous studies on greenium, not much has been investigated from the institutional investors’ perspective. The study estimates the institutional investors’ level of greenium by surveying the institutional investors in Shanghai, China, from October 23 to 1 November 2021, using the double-bound dichotomous choice (DBDC) contingent valuation method (CVM). The study also analyzes the effects of variables that are known to be important for the green bond based on previous studies. The study identifies that there is a greenium level of 0.47%. Among the seven variables tested with logit regression models, the credit and currency of the bond had a positive effect on the greenium. The study provides helpful insights for issuers’ strategic planning and could be a stepping stone to increasing issuance not only for the Chinese green bond market but also for the global green bond market.
    MDPI AG, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/jrfm15110508
    DOI ID:10.3390/jrfm15110508, eISSN:1911-8074, ORCID:122109133
  • Investigating the energy-environmental Kuznets curve under panel quantile regression: a global perspective
    Muhammad Iftikhar ul Husnain; Sisay Demissew Beyene; Kentaka Aruga
    Environmental Science and Pollution Research, 2022年10月, [査読有り]
    Springer Science and Business Media {LLC}, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/s11356-022-23542-3
    DOI ID:10.1007/s11356-022-23542-3, ISSN:0944-1344, eISSN:1614-7499, ORCID:121280465
  • Effects of the Human-Mobility Change during the COVID-19 Pandemic on Electricity Demand
    Aruga, K.
    Journal of Risk and Financial Management, 巻:15, 号:10, 開始ページ:422, 2022年09月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/jrfm15100422
    DOI ID:10.3390/jrfm15100422, ISSN:1911-8074, ORCID:179943382, SCOPUS ID:85140619834
  • Developing Novel Technique for Investigating Guidelines and Frameworks: A Text Mining Comparison between International and Japanese Green Bonds
    Kentaka Aruga; Md. Monirul Islam; Yoshihiro Zenno; Arifa Jannat
    Journal of Risk and Financial Management, 巻:15, 号:9, 開始ページ:382, 終了ページ:382, 2022年08月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    In most cases, the official documents related to guidelines and frameworks are complicated, long, and hard to understand for general readers, regardless of whether the government and financial companies follow international standards or not. In this context, the current study examines how the green bond (GB) guidelines created by the Japanese government are aligned with the Green Bond Principles (GBP) and Climate Bonds Standard (CBS) through a text mining technique. It also investigates whether the GB frameworks for the Japanese public and private companies follow the GB guidelines of the Japanese government. While the CBS is the guideline that focuses on climate bonds, the GBP specializes in GB whose scope is broader. The word frequency and word cloud analyses identify that the documents created by the Japanese government and companies have more similarities with the GBP, indicating that the Japanese GB guidelines and frameworks are more aligned with the GBP than the CBS. A pairwise word network matrix analysis also reveals that the Japanese GB guidelines and frameworks are more focused on broader environmental issues and sustainability than the CBS, which had more similarities with the GBP than the CBS.
    MDPI AG, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/jrfm15090382
    DOI ID:10.3390/jrfm15090382, ISSN:1911-8074, eISSN:1911-8074, ORCID:118037002
  • Effects of the State of Emergency during the COVID-19 Pandemic on Tokyo Vegetable Markets
    Aruga, K.; Islam, M.M.; Jannat, A.
    Sustainability (Switzerland), 巻:14, 号:15, 開始ページ:9719, 終了ページ:9719, 2022年08月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    The state of emergency (SOE) period in Tokyo under the COVID-19 pandemic restricted people to staying in their homes and changed human mobility, which has impacted the major agricultural markets in Tokyo. In this research, we analyzed how the changes in people’s staying-at-home behaviors during the four SOE periods (7 April 2020–28 October 2021) in Tokyo affected the daily market prices of cabbage, tomato, Japanese radish, carrot, and potato. Using the autoregressive distributed lag (ARDL) model, the study reveals that all the investigated vegetables except potatoes have a long-term relationship with the staying-at-home index. The long-term influence of staying-at-home behaviors on cabbage, tomato, radish, and carrot markets during the early SOE periods had a negative impact on these vegetable prices, indicating that an increase in the hours of staying-at-home as related to SOE measures might have decreased the demand for these vegetables. The negative impact of the stay-at-home index on vegetable prices lessened in the fourth SOE period, likely because more people did not remain in their homes. Moreover, the study findings reveal that, compared to less perishable vegetables, the price of perishable vegetables is more likely to have been affected by human mobility constraints during the pandemic. Therefore, agricultural policymakers should consider providing subsidies to producers based on the negative influence on market prices of perishable and less perishable vegetables in pandemic situations, such as COVID-19.
    {MDPI} {AG}, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/su14159719
    DOI ID:10.3390/su14159719, ISSN:2071-1050, eISSN:2071-1050, ORCID:179943376, SCOPUS ID:85137032240
  • Investigating the Impact of International Markets on Imported and Exported Non-Cereal Crops in Bangladesh
    Dr. Arifa Jannat; Kentaka Aruga; Jun Furuya; Miyuki Iiyama
    Agriculture, 巻:12, 号:6, 開始ページ:833, 終了ページ:833, 2022年06月
    To maintain a sustainable market for major non-cereal crops in Bangladesh, the present study evaluated the asymmetric effect of the key macroeconomic variables on the imported and exported non-cereal crops. In this connection, this study evaluated the nonlinear interactions and co-movements between the international market indicators such as the world prices, total trade amount, and gross domestic product per capita (GDPPC) and the market prices of potato and rapeseed in Bangladesh. Using yearly data from 1988 to 2019, we used the nonlinear autoregressive distributed lag (NARDL) model to investigate both short- and long-term market dynamics concerning the positive and negative shocks in the macroeconomic variables on imported and exported non-cereal crops. First, the study identifies that during the period investigated, the world potato and rapeseed prices led to an increase in the Bangladesh potato and rapeseed prices when they are increasing. Second, we find that the changes in the trade volume only have an influence on the potato price, both in the long-run and short-run. Finally, our findings revealed that domestic rapeseed prices tend to decrease when the GDPPC increases. Our empirical findings imply that it is important for market participants of potato and rapeseed in Bangladesh to take into consideration the sensitivity of the above-mentioned variables when designing resource allocation decisions in the event of positive and negative effects.
    {MDPI} {AG}, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/agriculture12060833
    DOI ID:10.3390/agriculture12060833, eISSN:2077-0472, ORCID:114403064
  • Revealing the pathway of reluctancy toward agricultural credit repayment: a case study on fish farmers in Bangladesh
    Dewan Abdullah Al Rafi; Sanzida Taurin; Kentaka Aruga; Md. Monirul Islam; Arifa Jannat
    SN Business & Economics, 巻:2, 号:6, 開始ページ:1, 終了ページ:24, 2022年06月, [査読有り]
    Springer Science and Business Media {LLC}, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/s43546-022-00224-3
    DOI ID:10.1007/s43546-022-00224-3, ISSN:2662-9399, eISSN:2662-9399, ORCID:113002005
  • Impact of the Number of Hours Spent at Home on the Volume of Municipal Waste Generated: Evidence from Tokyo during the COVID-19 Pandemic
    Aruga, K.
    Sustainability (Switzerland), 巻:14, 号:10, 開始ページ:1, 終了ページ:10, 2022年05月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/su14106165
    DOI ID:10.3390/su14106165, ISSN:2071-1050, ORCID:179943384, SCOPUS ID:85130897081
  • Future Issues of Environmental Economics               
    Kentaka Aruga
    開始ページ:169, 終了ページ:177, 2022年
    Springer International Publishing
    DOI:https://doi.org/10.1007/978-3-030-95077-4_7
    DOI ID:10.1007/978-3-030-95077-4_7, ORCID:107795848
  • Economic Instrument and Environmental Problems               
    Kentaka Aruga
    開始ページ:19, 終了ページ:58, 2022年
    Springer International Publishing
    DOI:https://doi.org/10.1007/978-3-030-95077-4_2
    DOI ID:10.1007/978-3-030-95077-4_2, ORCID:107795847
  • Economics and the Value of Nature               
    Kentaka Aruga
    開始ページ:59, 終了ページ:86, 2022年
    Springer International Publishing
    DOI:https://doi.org/10.1007/978-3-030-95077-4_3
    DOI ID:10.1007/978-3-030-95077-4_3, ORCID:107795846
  • Economics and Cross-Regional Environmental Problems               
    Kentaka Aruga
    開始ページ:87, 終了ページ:113, 2022年
    Springer International Publishing
    DOI:https://doi.org/10.1007/978-3-030-95077-4_4
    DOI ID:10.1007/978-3-030-95077-4_4, ORCID:107795845
  • Economics and Non-renewable/Renewable Resources               
    Kentaka Aruga
    開始ページ:115, 終了ページ:149, 2022年
    Springer International Publishing
    DOI:https://doi.org/10.1007/978-3-030-95077-4_5
    DOI ID:10.1007/978-3-030-95077-4_5, ORCID:107795844
  • Energy and Waste Problems               
    Kentaka Aruga
    開始ページ:151, 終了ページ:167, 2022年
    Springer International Publishing
    DOI:https://doi.org/10.1007/978-3-030-95077-4_6
    DOI ID:10.1007/978-3-030-95077-4_6, ORCID:107795843
  • What Is Environmental Economics?               
    Kentaka Aruga
    開始ページ:1, 終了ページ:18, 2022年
    Springer International Publishing
    DOI:https://doi.org/10.1007/978-3-030-95077-4_1
    DOI ID:10.1007/978-3-030-95077-4_1, ORCID:107795842
  • Environmental and Natural Resource Economics
    Aruga, K.
    Environmental and Natural Resource Economics, 2022年
    Environmental and Natural Resource Economics, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/978-3-030-95077-4
    DOI ID:10.1007/978-3-030-95077-4, ORCID:179943348, SCOPUS ID:85149568944
  • Relationships among the fossil fuel and financial markets during the COVID-19 pandemic: Evidence from bayesian DCC-MGARCH models
    Tang, C.; Aruga, K.
    Sustainability (Switzerland), 巻:14, 号:1, 開始ページ:51, 終了ページ:51, 2022年, [査読有り], [招待有り], [最終著者, 責任著者]
    This study examined how the relationships among the fossil fuel, clean energy stock, gold, and Bitcoin markets have changed since the COVID-19 pandemic took place for hedging the price change risks in the fossil fuel markets. We applied the Bayesian Dynamic Conditional Correlation-Multivariate GARCH (DCC-MGARCH) models using US daily data from 2 January 2019 to 26 February 2021. Our results suggest that the fossil fuel (WTI crude oil and natural gas) and financial markets (clean energy stock, gold, and Bitcoin) generally had negative relationships in 2019 before the pandemic prevailed, but they became positive for a while in mid-2020, alternating between positive (0.8) and negative values (−0.8). As it is known that negative relationships are required among assets to hedge the risk of price changes, this implies that stakeholders need to be cautious in hedging the risk across the fossil fuel and financial markets when a crisis like COVID-19 occurs. However, our study also revealed that such negative relationships only lasted for three to six months, suggesting that the effects of the pandemic were short term and that stakeholders in the fossil fuel markets could cross hedge with the financial markets in the long term.
    MDPI AG, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/su14010051
    DOI ID:10.3390/su14010051, ISSN:2071-1050, eISSN:2071-1050, ORCID:179943357, SCOPUS ID:85121604022
  • Investigating the effects of altruism on consumer preference for food from disaster-affected regions: A case of Japan
    Aruga, K.; Bolt, T.
    Journal of Agriculture and Food Research, 巻:6, 開始ページ:100215, 終了ページ:100215, 2021年12月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    Elsevier BV, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.jafr.2021.100215
    DOI ID:10.1016/j.jafr.2021.100215, ISSN:2666-1543, ORCID:179943374, SCOPUS ID:85122699638
  • Energy policy trade-offs in Poland: A best-worst scaling discrete choice experiment
    Aruga, K.; Bolt, T.; Pest, P.
    Energy Policy, 巻:156, 開始ページ:112465, 終了ページ:112465, 2021年09月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    Elsevier BV, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.enpol.2021.112465
    DOI ID:10.1016/j.enpol.2021.112465, ISSN:0301-4215, ORCID:179943385, SCOPUS ID:85109536627
  • Does Staying at Home during the COVID-19 Pandemic Help Reduce CO2 Emissions?
    Aruga, K.; Islam, M.M.; Jannat, A.
    Sustainability (Switzerland), 巻:13, 号:15, 開始ページ:8534, 終了ページ:8534, 2021年07月, [査読有り], [招待有り], [筆頭著者, 最終著者, 責任著者]
    Quarantining at home during the COVID-19 pandemic significantly restricted human mobility such as visits to parks, grocery stores, workplaces, retail places, and transit stations. In this research, we analyzed how the changes in human mobility during the first wave of the COVID-19 pandemic, from February to April 2020 (i.e., between 17 February and 30 April 2020), affected the daily CO2 emissions for countries having a high number of coronavirus cases at that time. Our daily time-series analyses indicated that when average hours spent at home increased, the amount of daily CO2 emissions declined significantly. The findings suggest that for all three countries (the US, India, and France), a 1% increase in the average duration spent in residential areas reduced daily CO2 emissions by 0.17 Mt, 0.10 Mt, and 0.01 Mt, respectively, during the first wave period. Thus, confining people into their homes contributes to cutting down CO2 emissions remarkably. However, the study also reveals those activities such as visiting parks and going grocery shopping increase CO2 emissions, suggesting that unnecessary human mobility is undesirable for the environment.
    {MDPI} {AG}, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/su13158534
    DOI ID:10.3390/su13158534, ISSN:2071-1050, eISSN:2071-1050, ORCID:179943392, SCOPUS ID:85111729130
  • Effects of the 2008 Financial Crisis and COVID-19 Pandemic on the Dynamic Relationship between the Chinese and International Fossil Fuel Markets
    Tang, C.; Aruga, K.
    Journal of Risk and Financial Management, 巻:14, 号:5, 開始ページ:1, 終了ページ:11, 2021年05月, [査読有り], [招待有り], [最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/jrfm14050207
    DOI ID:10.3390/jrfm14050207, ISSN:1911-8074, ORCID:179943366, SCOPUS ID:85106998678
  • Changes in Human Mobility under the COVID-19 Pandemic and the Tokyo Fuel Market
    Aruga, K.
    Journal of Risk and Financial Management, 巻:14, 号:4, 開始ページ:1, 終了ページ:12, 2021年04月, [査読有り], [招待有り], [筆頭著者, 最終著者, 責任著者]
    The study identifies the impact of the changes in human mobility due to the announcement of the state of emergency to cope with the COVID-19 pandemic on the Tokyo gasoline, diesel, and kerosene markets. Indices reflecting the movements in the visits to transit stations and workplaces were used to capture the changes in human mobility from February 2020 to February 2021. The linear and nonlinear ARDL (NARDL) models were applied to investigate the relationship between the changes in human mobility indices and fuel prices. Although only the kerosene price received an impact from the human mobility changes in the linear ARDL model, the NARDL model revealed that when human mobility was increasing, the fuel price was affected positively and the negative shocks in the mobility had an adverse influence on the fuel price. The results of the study imply the importance of providing subsidies when a state of emergency reduces fuel demands due to the decline in human mobility and negatively affects the fuel retail industry.
    MDPI AG, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/jrfm14040163
    DOI ID:10.3390/jrfm14040163, ISSN:1911-8074, eISSN:1911-8074, ORCID:179943386, SCOPUS ID:85107342866
  • Potential Economic Impacts of the COVID-19 Pandemic on South Asian Economies: A Review
    Md. Monirul Islam; Arifa Jannat; Dewan Abdullah Al Rafi; Kentaka Aruga
    World, 巻:1, 号:3, 開始ページ:283, 終了ページ:301, 2020年12月, [査読有り], [招待有り]
    The present research analyzes the potential economic impact of the COVID-19 pandemic on South Asian economies using a systematic review approach. The cause-effect relationship framework showed that the outbreak of COVID-19 slowed down the gross domestic product (GDP) along with major economic sectors and indicators in the South Asian economies. The short and long-run predicted scenario showed that, compared to the agriculture sector, the service and manufacturing sectors will be affected more seriously in all South Asian countries. It was found that governments in the region are trying their best to adopt and implement expansionary fiscal strategies to combat this situation. Many countries have included farmers and allied workers in the government’s support system to utilize resources. In order to maintain the balance of international trade, the import and export of essential items must be given special support. To cope with this situation, governments can invest money from different autonomous institutions to expand Micro, Small, and Medium Enterprises (MSME). The findings of this research will be helpful for policy planners to formulate appropriate programs for short and long-run demands, along with economic and fiscal policies to sustain and revive the economic activity in South Asia.
    {MDPI} {AG}, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/world1030020
    DOI ID:10.3390/world1030020, ISSN:2673-4060, eISSN:2673-4060, ORCID:84833417
  • Energy Prices and COVID-Immunity: The Case of Crude Oil and Natural Gas Prices in the US and Japan
    Honorata Nyga-Łukaszewska; Kentaka Aruga
    Energies, 巻:13, 号:23, 開始ページ:6300, 終了ページ:6300, 2020年11月, [査読有り], [招待有り], [責任著者]
    The COVID-19 pandemic storm has struck the world economies and energy markets with extreme strength. The goal of our study is to assess how the pandemic has influenced oil and gas prices, using energy market reactions in the United States and Japan. To investigate the impact of the COVID-19 cases on the crude oil and natural gas markets, we applied the Auto-Regressive Distributive Lag (ARDL) approach to the number of the US and Japanese COVID-19 cases and energy prices. Our study period is from 21 January 2020 to 2 June 2020, and uses the latest data available at the time of model calibration and captures the so-called “first pandemic wave.” In the US, the COVID-19 pandemic had a statistically negative impact on the crude oil price while it positively affected the gas price. In Japan, this negative impact was only apparent in the crude oil market with a two-day lag. Possible explanations of the results may include differences in pandemic development in the US and Japan, and the diverse roles both countries have in energy markets.
    {MDPI} {AG}, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/en13236300
    DOI ID:10.3390/en13236300, ISSN:1996-1073, eISSN:1996-1073, ORCID:84417982
  • A study on the pass-through rate of the exchange rate on the liquid natural gas (LNG) import price in China
    Tang, C.; Aruga, K.
    International Journal of Financial Studies, 巻:8, 号:4, 開始ページ:1, 終了ページ:19, 2020年11月, [査読有り], [責任著者]
    The Chinese liquid natural gas (LNG) import price has been unstable because the stability of LNG import prices is related to changes in the exchange rates. This paper analyzes the pass-through rate of the Chinese Yuan (CNY) and Japanese Yen (JPY) on the Chinese LNG import price. The Time-Varying Parameter vector autoregressive (TVP-VAR) model is adopted to verify the pass-through rate of the exchange rates on the LNG import price using the Markov chain Monte Carlo (MCMC) method. Since September 2005, the JPY pass-through rate on the Chinese LNG import price has been decreasing while that of the CNY has been increasing. Notably, the pass-through rate of CNY began to exceed that of JPY after 2008. Moreover, since 2005, the lag effect of the CNY on the Chinese LNG import price became longer compared to JPY. If any new currency reform of the CNY is implemented in the future, then the impact of JPY on the Chinese LNG import price could be reduced and the lag effect of the CNY on the Chinese LNG import price could become longer. Therefore, the fluctuation of the CNY is becoming an important factor in understanding the movements of the Chinese LNG import price. This implies the significance of considering the effect of the exchange rate on an energy market when the market is influenced by a monetary reform of the importing country.
    MDPI AG, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/ijfs8040070
    DOI ID:10.3390/ijfs8040070, ISSN:2227-7072, eISSN:2227-7072, ORCID:179943363, SCOPUS ID:85096377767
  • Is Environmental Awareness a Good Predictor of an Individual’s Altruism Level?
    有賀健高
    Sustainability, 巻:12, 号:19, 開始ページ:1, 終了ページ:12, 2020年09月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/SU12197929
    DOI ID:10.3390/SU12197929, ISSN:2071-1050, ORCID:179943361, SCOPUS ID:85092184546
  • Is the willingness to support disaster regions through consumption related to altruism? A discrete choice experiment               
    Aruga, K; Bolt, T
    International Journal of Disaster Risk Reduction, 巻:50, 開始ページ:1, 終了ページ:12, 2020年09月, [査読有り], [筆頭著者]
    Elsevier BV, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.ijdrr.2020.101876
    DOI ID:10.1016/j.ijdrr.2020.101876, ISSN:2212-4209
  • Effects of the 2008 financial crisis on the linkages among the oil, gold, and platinum markets
    Kentaka Aruga; Sudha Kannan
    Cogent Economics & Finance, 巻:8, 号:1, 開始ページ:1, 終了ページ:13, 2020年08月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    Informa UK Limited, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1080/23322039.2020.1807684
    DOI ID:10.1080/23322039.2020.1807684, ISSN:2332-2039
  • Radiation knowledge and willingness to buy bottled water from regions near the Fukushima Daiichi Nuclear Power Plant
    Kentaka Aruga
    Water International, 巻:45, 号:7-8, 開始ページ:812, 終了ページ:823, 2020年08月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    Informa UK Limited, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1080/02508060.2020.1795789
    DOI ID:10.1080/02508060.2020.1795789, ISSN:0250-8060, eISSN:1941-1707, ORCID:122374866
  • Effects of COVID-19 on Indian energy consumption
    Aruga, K.; Islam, M.M.; Jannat, A.
    Sustainability (Switzerland), 巻:12, 号:14, 開始ページ:5616, 終了ページ:5616, 2020年07月, [査読有り], [筆頭著者, 最終著者, 責任著者]
    Just after the Indian government issued the first lockdown rule to cope with the increasing number of COVID-19 cases in March 2020, the energy consumption in India plummeted dramatically. However, as the lockdown relaxed, energy consumption started to recover. In this study, we investigated how COVID-19 cases affected Indian energy consumption during the COVID-19 crisis by testing if the lockdown release had a positive impact on energy consumption and if richer regions were quicker to recover their energy consumption to the level before the lockdown. Using the autoregressive distributed lag (ARDL) model, the study reveals that a long-run relationship holds between the COVID-19 cases and energy consumption and that the COVID-19 cases have a positive effect on Indian energy consumption. This result indicates that as lockdown relaxed, energy consumption started to recover. However, such a positive impact was not apparent in the Eastern and North-Eastern regions, which are the poorest regions among the five regions investigated in the study. This implies that poorer regions need special aid and policy to recover their economy from the damage suffered from the COVID-19 crisis.
    {MDPI} {AG}, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/su12145616
    DOI ID:10.3390/su12145616, ISSN:2071-1050, eISSN:2071-1050, ORCID:179943390, SCOPUS ID:85088628559
  • Analyzing the condition of Japanese electricity cost linkages by fossil fuel sources after the Fukushima disaster
    Kentaka Aruga
    Energy Transitions, 巻:4, 号:1, 開始ページ:91, 終了ページ:100, 2020年06月, [査読有り]
    Springer Science and Business Media LLC, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/s41825-020-00025-y
    DOI ID:10.1007/s41825-020-00025-y, ISSN:2520-1166, eISSN:2520-114X
  • Are Oil and Gas Prices Immune to COVID-19?               
    Aruga, K; Nyga-Łukaszewska, H
    IAEE ENERGY FORUM, 巻:Covid-19 Special Issue(Special Issue), 開始ページ:94, 終了ページ:97, 2020年05月, [査読有り], [招待有り], [筆頭著者]
    英語, 研究論文(大学,研究機関等紀要)
  • Energy security of Poland and coal supply: Price analysis
    Nyga-Lukaszewska, H.; Aruga, K.; Stala-Szlugaj, K.
    Sustainability (Switzerland), 巻:12, 号:6, 開始ページ:2541, 終了ページ:2541, 2020年03月, [査読有り]
    Energy security is one of the most intensely debated topics. Majority of papers treat the issue from the hydrocarbon market perspective, but this research focuses on the coal market broken into two specific market segments: heating and electricity production. Using the case of Poland as an example, we conduct a cointegration analysis between the coal and natural gas markets. The study uses monthly data from 2011 until the beginning of 2019. Our results show that the Polish electricity sector is more connected to the international coal market than it is to the natural gas market, while the heating sector, despite using insignificant quantities of imported coal, is more connected to the natural gas market. Hence, energy security—in its price dimension—in those two market segments differs. This situation has important policy implications. First, energy policy should take this difference into account, and second, such variation implies that different market tools should be used in those market segments.
    MDPI AG, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/su12062541
    DOI ID:10.3390/su12062541, ISSN:2071-1050, eISSN:2071-1050, ORCID:179943395, SCOPUS ID:85082964848
  • 被災地復興支援の消費行動と利他的意識に関する研究               
    Kentaka Aruga
    環境情報科学論文集, 巻:33, 開始ページ:205, 終了ページ:210, 2019年11月, [査読有り], [国内誌]
    日本語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.11492/ceispapers.ceis33.0_205
    DOI ID:10.11492/ceispapers.ceis33.0_205, ORCID:77465702
  • Investigating the energy-environmental Kuznets curve hypothesis for the Asia-Pacific region
    Aruga, K.
    Sustainability (Switzerland), 巻:11, 号:8, 開始ページ:2395, 終了ページ:2395, 2019年04月, [査読有り]
    {MDPI} {AG}, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.3390/su11082395
    DOI ID:10.3390/su11082395, ISSN:2071-1050, ORCID:179943381, SCOPUS ID:85066940727
  • Investigating the price linkage between the Asian LNG spot and east Asian LNG prices and its implications               
    Jeremia Dwi Martono; Kentaka Aruga
    International Journal of Global Energy Issues, 巻:41, 号:1-4, 開始ページ:86, 終了ページ:97, 2018年, [査読有り]
    This study investigates the price linkages among the Asian LNG spot and East Asian LNG prices to examine the existence of a long run relationship among the spot, Japanese, South Korean, Taiwanese, and Chinese LNG prices using co-integration analysis over the 2009–2014 period. The results show that the Asian LNG spot price did not have a price linkage with both monthly averages of Japanese and Taiwanese LNG prices. The analyses also indicated that the South Korean LNG market moved together with the Asian LNG spot market. Lastly, the study discovered that the Chinese LNG market was somewhat influenced by the dynamics of the Asian LNG spot market. The findings corroborate the International Energy Agency’s views on the importance of creating a natural gas trading hub in Asia that reflects the dynamics of the gas market in the Asia Pacific Basin and making the Asian gas market to become more uniform.
    Inderscience Enterprises Ltd., 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1504/IJGEI.2018.092305
    DOI ID:10.1504/IJGEI.2018.092305, ISSN:0954-7118, SCOPUS ID:85048864734
  • Consumer Perceptions toward Seafood Produced near the Fukushima Nuclear Plant               
    有賀健高; 若松宏樹
    Marine Resource Economics, 巻:33, 号:4, 開始ページ:373, 終了ページ:386, 2018年, [査読有り]
    This study investigates consumer perceptions toward seafood produced from regions near the Fukushima Daiichi Nuclear Power Plant (FDNPP). It applies probit and latent class analyses on consumer survey data for tuna fish and wakame seaweed from regions near the FDNPP. We find consumers who perceive a high risk of radioactive contamination of food, have children, and a higher level of academic achievement tend to react negatively toward buying seafood from regions near the FDNPP. However, elderly individuals and those sensitive to environmental issues respond positively toward such seafood. The latent class analysis revealed a consumer group that enthusiastically supports the disaster-affected region and has a higher willingness to buy products from the region. The results provide valuable information to help alleviate the economic effects resulting from negative perceptions toward seafood from these regions.
    UNIV CHICAGO PRESS, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1086/698998
    DOI ID:10.1086/698998, ISSN:0738-1360, eISSN:2334-5985, Web of Science ID:WOS:000445085000004
  • Consumer responses to food produced near the Fukushima nuclear plant               
    Kentaka Aruga
    Environmental Economics and Policy Studies, 巻:19, 号:4, 開始ページ:677, 終了ページ:690, 2017年10月, [査読有り]
    This study examines consumer survey data on seven agricultural products (rice, apples, cucumbers, beef, pork, eggs, and shiitake mushrooms) from regions near the Fukushima Daiichi nuclear power plant (FDNP) to determine which factors and attributes affect consumers’ purchasing behavior, as measured using the contingent valuation method. We found that consumers who prioritize food safety believe that the risk of radiation contamination became high after the Fukushima nuclear incident. These consumers, who live at a distance from the FDNP and have children under the age of 15, require a higher discount rate to accept agricultural products from regions near the power plant. Conversely, our study indicated that consumers who trust the current safety standards for radioactive material concentrations in food are knowledgeable about radiation and radioactive materials, have high environmental consciousness, and are older that are more likely to purchase products from regions near the plant.
    Springer Tokyo, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1007/s10018-016-0169-y
    DOI ID:10.1007/s10018-016-0169-y, ISSN:1432-847X, SCOPUS ID:84980012109
  • Consumer Reaction, Food Production and the Fukushima Disaster               
    Kentaka Aruga
    2017年07月
    Springer, 英語
    DOI:https://doi.org/10.1007/978-3-319-59849-9
    DOI ID:10.1007/978-3-319-59849-9, ORCID:35423988
  • 人口増加が環境に与える影響―近年の論争               
    有賀健高
    石川県立大学年報, 巻:2015, 開始ページ:28‐33, 終了ページ:33, 2016年10月, [筆頭著者, 最終著者, 責任著者]
    石川県立大学広報委員会, 日本語, 研究論文(大学,研究機関等紀要)
    DOI ID:10.20715/aripu.2015.0_28, ISSN:1881-9605, J-Global ID:201602291394146379, CiNii Articles ID:40021029367, CiNii Books ID:AA12164962
  • The U.S. shale gas revolution and its effect on international gas markets               
    Kentaka Aruga
    Journal of Unconventional Oil and Gas Resources, 巻:14, 開始ページ:1, 終了ページ:5, 2016年06月, [査読有り]
    The U.S. natural gas price dropped dramatically in the U.S. after the shale gas revolution. This paper investigated if the change in the structure of the U.S. natural gas market after the revolution is affecting the Japanese and European gas markets. We used the Bai-Perron test to identify the break date related to the shale gas revolution and tested if the market linkages among the U.S., Japanese, and European gas markets changed before and after the statistically determined break date. The result indicated that the U.S. gas market had a price relationship with the international markets for the period before the break date related to the shale gas revolution, but this relationship disappeared for the period after the break date. This result implied that the U.S. gas market became independent after the shale gas revolution and that the price linkage between the U.S. and international gas markets became weaker after the shale gas revolution. The study revealed that the effect of the U.S. shale gas revolution is not yet affecting the international gas markets.
    Elsevier Ltd, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.juogr.2015.11.002
    DOI ID:10.1016/j.juogr.2015.11.002, ISSN:2213-3976, SCOPUS ID:84959466679
  • Testing market integration for Japanese retail seafood markets               
    Kentaka Aruga; Raymond Li
    AUSTRALIAN JOURNAL OF AGRICULTURAL AND RESOURCE ECONOMICS, 巻:60, 号:2, 開始ページ:212, 終了ページ:226, 2016年04月, [査読有り]
    Although Japan is one of the largest seafood-consuming countries, with various types of seafood products traded throughout the nation, few studies have explored how this market is integrated from the aspect of market price. Because Japanese consumers in different regions have different preferences for seafood, we focused our study to see how the regional seafood retail markets (Tokyo, Osaka, Nagoya, Sapporo, and Fukuoka) are integrated for 10 major seafood products (horse mackerel, short-necked clams, yellowtail, scallops, cuttlefish/squid, flounder, tuna, mackerel, saury, and octopus) consumed in Japan. We applied the relatively new Phillips-Sul convergence test for our analysis. For most of the seafood products investigated in this study, our results indicate that the Japanese regional seafood markets cannot be integrated as a whole and that marketing strategies need to consider the peculiar characteristics of the regional seafood markets.
    WILEY-BLACKWELL, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1111/1467-8489.12121
    DOI ID:10.1111/1467-8489.12121, ISSN:1364-985X, eISSN:1467-8489, SCOPUS ID:84935085949, Web of Science ID:WOS:000373614200008
  • Testing the international crude oil market integration with structural breaks               
    Aruga, K.
    Economics Bulletin, 巻:35, 号:1, 開始ページ:641, 終了ページ:649, 2015年03月, [査読有り]
    英語, 研究論文(学術雑誌)
    ORCID:35187084, SCOPUS ID:84940051082
  • 環境意識の高い消費者は福島原子力発電所近辺の食品購入に積極的なのか:消費者アンケート調査からの検証               
    有賀健高
    環境情報科学, 巻:28, 開始ページ:223, 終了ページ:226, 2014年12月, [査読有り]
    本研究では,風評被害の払拭には福島原子力発電所近辺を産地とする食品に対する消費者意識を把握することが重要であるという立場から,主に消費者の環境意識が,発電所近辺を産地とする食品購入に与える影響について検証した。アンケート調査によって得られたデータの分析から,環境意識の高い消費者ほど原発近辺を産地とする食品に対する購入意欲があることが示された。また環境意識以外の分析から,食品中の放射性物質の規格基準への信頼,高年齢,男性といった要素は購入意欲に正の影響があることがわかった。一方,高所得,高学歴,子供が多い,居住地が原発から離れているといった要素は購入意欲に負の影響を与えることが明らかとなった。
    一般社団法人環境情報科学センター, 日本語
    DOI:https://doi.org/10.11492/ceispapers.ceis28.0_223
    DOI ID:10.11492/ceispapers.ceis28.0_223, ISSN:0389-6633, J-Global ID:201502220159478156, CiNii Articles ID:130005162747
  • An intervention analysis on the Tokyo grain exchange non-genetically modified and conventional soybean futures markets               
    Kentaka Aruga
    Cogent Economics and Finance, 巻:2, 号:1, 開始ページ:1, 終了ページ:11, 2014年, [査読有り]
    This paper examines how efficiently the price premium for non-genetically modified (non-GM) soybeans at the Tokyo Grain Exchange (TGE) reacts to an announcement to change the contract unit, suppliers, and expiration date on the conventional soybean futures contract. An intervention analysis is used for this purpose. The results reveal that the price premium for non-GM soybeans increases after the change and this effect did not disappear immediately. This implies that the two soybean futures markets did not respond quickly to the announcement and there was an informational inefficiency after the announcement. The TGE non-GM soybean futures market is one of the first segregated markets for a non-GM commodity. An intervention of clearing houses on such newly opened markets can often lead to market inefficiency so a further study is necessary in order to understand what causes such inefficiency and to find out how clearing houses can minimize the effects of intervention.
    Cogent OA, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1080/23322039.2014.918854
    DOI ID:10.1080/23322039.2014.918854, ISSN:2332-2039, SCOPUS ID:85015555788
  • The impact of the shale gas revolution on the US and Japanese natural gas markets               
    Hiroki Wakamatsu; Kentaka Aruga
    ENERGY POLICY, 巻:62, 開始ページ:1002, 終了ページ:1009, 2013年11月, [査読有り]
    We investigated whether the increase in the US shale gas production changed the structures of the US and Japanese natural gas markets using market data for the period 2002:5-2012:5. Our analysis consists of a structural break test and market integration analysis. The Bai and Perron structural break test detected a break point of natural gas prices and consumption in 2005 as well as other external shocks Hurricane Katrina and the Lehman Shock - that are irrelevant to shale gas development. We eliminated the impact of these shocks by separating the data set using the breaks identified in our analysis. We found the breaks skewed the estimation; a market linkage existed between the US and Japanese markets in the original data set, while it did not in the separated data. The vector autoregressive (VAR) model also indicated a significant change before and after the break point; the US market had a one-side influence on the Japanese market before 2005, but the influence disappeared after 2005. Our results implied that the shale gas revolution, triggered by the increase in shale gas production in 2005, caused the change in the relationship between the US and Japanese natural gas markets. (C) 2013 Elsevier Ltd. All rights reserved.
    ELSEVIER SCI LTD, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.enpol.2013.07.122
    DOI ID:10.1016/j.enpol.2013.07.122, ISSN:0301-4215, eISSN:1873-6777, SCOPUS ID:84884973408, Web of Science ID:WOS:000326770300100
  • Linkages among the US energy futures markets
    Kentaka Aruga; Shunsuke Managi
    International Journal of Global Energy Issues, 巻:36, 号:1, 開始ページ:13, 終了ページ:26, 2013年, [査読有り]
    This study investigates the price linkage among the US major energy sources, considering structural breaks in time series, to provide information for diversifying the US energy sources. We find that only a weak linkage sustains among crude oil, gasoline, heating oil, coal, natural gas, uranium and ethanol futures prices. This implies that the US major energy source markets are not integrated as one primary energy market. Our tests also reveal that uranium and ethanol futures prices have very weak linkages with other major energy source prices. This indicates that the US energy market is still at a stage where none of the probable alternative energy source markets are playing the role as substitute or complement markets for the fossil fuel energy markets.
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1504/IJGEI.2013.055934
    DOI ID:10.1504/IJGEI.2013.055934, ISSN:0954-7118, SCOPUS ID:84882943974
  • Testing the effects of the Japanese vehicle emission-control law on the international palladium futures market               
    Aruga, K.; Managi, S.
    Economics Bulletin, 巻:32, 号:2, 開始ページ:1198, 終了ページ:1207, 2012年12月, [査読有り]
    This paper tested the effects of the 2005 vehicle emission-control law issued in Japan on the market linkages between the U.S. and Japanese palladium futures markets, To determine these effects, we applied a cointegration test both with and without break points in the time series and found that the market linkages between the two countries changed after the break in October 2005. Our results show that the 2005 long-term regulation of vehicle emissions enacted in Japan influenced the international palladium futures market.
    研究論文(学術雑誌)
    ORCID:35187083, SCOPUS ID:84873323803
  • Diversity on fisheries: Price volatilities in the Japanese market
    Kentaka Aruga; Shunsuke Managi
    The Economics of Biodiversity and Ecosystem Services, 開始ページ:202, 終了ページ:216, 2012年01月
    Taylor and Francis, 英語, 論文集(書籍)内論文
    DOI:https://doi.org/10.4324/9780203097878
    DOI ID:10.4324/9780203097878, SCOPUS ID:84917279407
  • Market delineation among the Japanese retail fish markets
    Kentaka Aruga; Shunsuke Managi
    The Economics of Biodiversity and Ecosystem Services, 開始ページ:217, 終了ページ:227, 2012年01月
    Taylor and Francis, 英語, 論文集(書籍)内論文
    DOI:https://doi.org/10.4324/9780203097878
    DOI ID:10.4324/9780203097878, SCOPUS ID:84917275240
  • Testing the international linkage in the platinum-group metal futures markets               
    Kentaka Aruga; Shunsuke Managi
    RESOURCES POLICY, 巻:36, 号:4, 開始ページ:339, 終了ページ:345, 2011年12月, [査読有り]
    This study tests whether an international market exists in the platinum-group metal (PGM) futures markets. For this purpose, we tested the law of one price (LOP) and the causality between the U.S. and Japanese platinum and palladium futures markets. We also performed the test when structural breaks are considered. Long-run price relationships were found in both platinum and palladium markets but the LOP only sustained in the palladium market. The causality test revealed that it is the U.S. market that leads the price to transmit information between the U.S. and Japanese markets. Structural breaks had large impacts on the test results, suggesting that incorporating breaks is important when investigating the international price linkage in the PGM futures markets. (C) 2011 Elsevier Ltd. All rights reserved.
    ELSEVIER SCI LTD, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.resourpol.2011.09.003
    DOI ID:10.1016/j.resourpol.2011.09.003, ISSN:0301-4207, SCOPUS ID:81955167422, Web of Science ID:WOS:000298532100005
  • Price linkages in the copper futures, primary, and scrap markets               
    Kentaka Aruga; Shunsuke Managi
    RESOURCES CONSERVATION AND RECYCLING, 巻:56, 号:1, 開始ページ:43, 終了ページ:47, 2011年11月, [査読有り]
    This study investigates how markets for different levels of copper purity are interrelated by testing the long-run price linkage and causalities among the copper futures, primary, copper scrap, and brass scrap markets. It is expected that copper markets that deal with high purity levels, such as the futures, primary, and copper scrap markets, have a long-run relationship. However, brass scrap markets where copper with a lower purity is traded may not have a price linkage with other copper markets. The results reveal that a long-run relationship holds between the futures, primary, and copper scrap markets but the brass scrap market does not have a long-run relationship with the other markets. From the short-run and long-run causality tests, we determine that the futures market plays an important role in transmitting price information to other copper markets while such information flow is not found for the brass scrap market. (C) 2011 Elsevier B.V. All rights reserved.
    ELSEVIER SCIENCE BV, 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1016/j.resconrec.2011.08.010
    DOI ID:10.1016/j.resconrec.2011.08.010, ISSN:0921-3449, SCOPUS ID:80053479513, Web of Science ID:WOS:000297524500005
  • 非遺伝子組換え大豆とエネルギーの価格関係について               
    有賀健高
    環境情報科学, 巻:25, 開始ページ:85, 終了ページ:88, 2011年11月, [査読有り]
    アメリカでは大豆のエネルギー利用が注目されている。エネルギーのための大豆利用が増えれば,日本では大豆油に利用される遺伝子組み換え大豆(non-GMO)だけでなく,食物用として消費される非遺伝子組換え大豆の価格が高騰することが懸念される。本研究では共和分の手法を用いて非遺伝子組換え大豆及び遺伝子組み換えも含めた一般大豆がアメリカの石油及びエタノールといったエネルギーと価格の面で関係性を持つかどうかを検証した。研究では,non-GMO大豆及び一般大豆とアメリカのエネルギー価格の間には価格連動性がないことが明らかとなり,現状では,アメリカのエネルギー市場が日本の大豆市場に影響を与えていないということがわかった。
    一般社団法人環境情報科学センター, 日本語
    DOI:https://doi.org/10.11492/ceispapers.ceis25.0_85
    DOI ID:10.11492/ceispapers.ceis25.0_85, ISSN:0389-6633, J-Global ID:201102255964951126, CiNii Articles ID:130005162564, CiNii Books ID:AN10544669
  • Tests on price linkage between the U.S. and Japanese gold and silver futures markets               
    Aruga, K.; Managi, S.
    Economics Bulletin, 巻:31, 号:2, 開始ページ:1038, 終了ページ:1046, 2011年07月, [査読有り]
    We tested the price linkage, the law of one price (LOP) condition, and the causality of the price linkage between the U.S. and Japanese gold and silver futures markets with consideration of structural breaks in the price series. The LOP condition did not hold for both the gold and silver markets when structural breaks were not considered but it sustained in some periods when it was tested for the break periods. We found from the causality test that the price linkage between the U.S. and Japanese gold and silver futures markets were led by the U.S. market.
    研究論文(学術雑誌)
    ORCID:35187082, SCOPUS ID:79959809995
  • Are the Tokyo Grain Exchange non‐genetically modified organism (non‐GMO) and conventional soybean futures markets integrated?               
    有賀 健高
    Agricultural Finance Review, 巻:71, 号:1, 開始ページ:84, 終了ページ:97, 2011年05月, [査読有り]
    Purpose – The purpose of this paper is to test the market linkage and the strength of the linkage between the identity-preserved (IP) non-genetically modified organism (non-GMO) and non-IP conventional soybean futures markets at the Tokyo Grain Exchange (TGE) when effects from structural breaks are considered. Design/methodology/approach – The Johansen method is used for testing the market linkage and the law of one price (LOP) test is performed to find out the strength of the linkage. The Bai-Perron test is conducted on the price series to identify the structural breaks. After the breaks are statistically determined by the Bai-Perron test the Johansen tests are conducted for every break period. Findings – Market linkage exists between the non-GMO and conventional soybean futures markets but the LOP test suggests that the two markets are not fully linked and the relative price of the two soybeans is not constant. The breaks identified in the study affected the market linkage
    the price relationship is lost during the break periods. Practical implications – The results of this study help explain the value of other new markets where the product traded is a close substitute for an existing market. Originality/value – This is the first study to apply the market integration theory to an IP market. The TGE non-GMO soybean contract is the first market price series with sufficient information to appropriately model a price integration linkage for an IP market. The result is valuable in the future when more markets for IP commodities are developed.
    Emerald Group Publishing Ltd., 英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.1108/00021461111128174
    DOI ID:10.1108/00021461111128174, ISSN:2041-6326, SCOPUS ID:81955163628
  • Market efficiency in the non-genetically modified soybean futures market
    Kentaka Aruga
    Journal of Agricultural and Food Industrial Organization, 巻:9, 号:1, 2011年, [査読有り]
    The world's first non-genetically modified (non-GM) soybean futures market opened in May 2000 but no studies have tested whether this market transmits price information efficiently. This study investigates the market efficiency of the non-GM and conventional soybean futures markets and their information flow between the futures and spot prices. The Johansen cointegration test is used for this purpose. The results suggest that both the non-GM and conventional soybean futures markets are efficient, but the non-GM soybean futures market is relatively inefficient compared to the conventional soybean futures market. In both soybean futures markets long-run information flow was found from the spot market to the futures market and existence of such causality supports that these futures markets function efficiently. © 2011 De Gruyter. All rights reserved.
    英語, 研究論文(学術雑誌)
    DOI:https://doi.org/10.2202/1542-0485.1345
    DOI ID:10.2202/1542-0485.1345, ISSN:1542-0485, SCOPUS ID:84855366506
  • Essays on the Efficiency of Non-Genetically Modified and Conventional Soybean Futures Markets               
    有賀 健高
    University of Rhode Island, 2010年05月, [筆頭著者, 最終著者, 責任著者]
    英語, 学位論文(博士)
  • Differences in characteristics of religious groups in India: as seen from household survey data               
    Aruga, K
    CEPE Working paper series, 巻:03-26, 2003年, [招待有り], [筆頭著者, 最終著者, 責任著者]
    英語, 研究論文(大学,研究機関等紀要)
■ 書籍等出版物
  • Environmental and Natural Resource Economics               
    環境資源経済学, [単著]
    2022年02月
  • 環境経済学―環境・資源問題を経済学はどう捉えるか               
    有賀健高, [単著]
    時潮社, 2021年05月
  • Consumer Reaction, Food Production and the Fukushima Disaster               
    有賀 健高, [単著]
    Springer, 2017年07月
  • 原発事故と風評被害-食品の放射能汚染に対する消費者意識               
    有賀 健高, [単著]
    昭和堂, 2016年10月
  • 農林水産の経済学               
    有賀 健高, [共著], 第4章「農産物流通の機能と担い手」、第5章「日本の米及および青果物市場の流通」
    2015年
  • エネルギー経済学               
    有賀 健高, [共著], 第4章「シェールガスがもたらしたエネルギー革命
    2014年
  • The Economics of Biodiversity and Ecosystem Services               
    有賀 健高, [共著], 第12章、第13章
    Routledge, 2012年
  • 環境と資源の経済学               
    有賀 健高, [共著], 第2章「レアメタルの先物市場」
    2012年
  • 世界地図で読む環境破壊と再生               
    有賀 健高, [共著], 第1、2、5、6、9、12、18章
    旬報社, 2004年
■ 講演・口頭発表等
  • 個人投資家の環境意識が環境債への投資意欲に及ぼす影響:グリーンボンド・ブルーボンド・サステナビリティボンドの比較研究               
    有賀健高
    2024年環境情報科学 研究発表大会, 2024年12月
    日本語, 口頭発表(一般)
  • Disaggregated Impact of Non-Renewable Energy Consumption on the Environmental Sustainability of the United States: A Novel Dynamic ARDL Approach               
    Tanmoy Kumar Ghose; Md Rezanual Islam; Kentaka Aruga; Arifa Janna; Md. Monirul Islam
    The 3rd International Conference on Japan-Bangladesh Research and Practice, 2024年11月
    英語, 口頭発表(一般)
  • Revealing the Pathway of Reluctancy Toward Agricultural Credit Repayment: A Case Study on Fish Farmers in Bangladesh               
    Dewan Abdullah Al Rafi; Sanzida Taurin; Kentaka Aruga; Arifa Janna; Md. Monirul Islam
    The 3rd International Conference on Japan-Bangladesh Research and Practice, 2024年11月
    英語, 口頭発表(一般)
  • Comparing Factors Affecting Chinese Institutional Investors’ Willingness to Pay for Green Bonds in Beijing, Shanghai, and Shenzhen               
    善野義博; 有賀健高
    環境経済・政策学会2024年大会, 2024年09月
    口頭発表(一般)
  • Comparing the willingness to invest returns among green, sustainability, and blue bonds               
    有賀健高
    環境経済・政策学会2024年大会, 2024年09月
    英語, 口頭発表(一般)
  • Assessing the CO2 emissions and energy source consumption nexus in Japan               
    有賀健高
    IAEE 45th International Conferefence, 2024年06月
    英語, 口頭発表(一般)
  • Investigating Factors Affecting Institutional Investors’ Green Bond Investments: Cases for Beijing and Shenzhen               
    善野吉博; 有賀健高
    日本金融学会2024年度春季大会, 2024年05月
    日本語, 口頭発表(一般)
  • グリーンボンドへの投資に与える要素の把握研究:日本の事例から               
    有賀健高
    環境経済・政策学会2023年大会, 2023年10月
    口頭発表(一般)
  • 機関投資家のグリーン・ボンド投資判断基準~中国北京・深圳の事例               
    善野吉博; 有賀健高
    環境経済・政策学会2023年大会, 2023年10月
    口頭発表(一般)
  • The impacts of COVID-19 on seafood prices in Japan: a comparison between cheap and luxury products               
    Aruga, K
    The 12th Congress of Asian Association of Environmental and Resource Economics, 2023年08月
    英語, 口頭発表(一般)
  • グリーンボンドに対する日本と中国の投資家の意識調査研究               
    有賀健高; 善野義博
    超異分野学会 大阪大会2023, 2023年08月
    2023年08月 - 2023年08月, 日本語, ポスター発表
  • Effects of fossil fuel prices on the Japanese electricity market during crises               
    Aruga, K
    18th IAEE European Conference, 2023年07月
    英語, 口頭発表(一般)
  • 機関投資家のグリーン・ボンドへの支払意思額〜中国上海の事例               
    善野 吉博; 有賀 健高
    環境経済・政策学会2022年大会, 2022年10月
    口頭発表(一般)
  • Estimating the retail investor’s willingness to pay for green bonds               
    有賀健高
    環境経済・政策学会2022年大会, 2022年10月
    英語, 口頭発表(一般)
  • Are Retail Investors Willing to Buy Green Bonds? A Case of Japan               
    Aruga, K
    43rd IAEE International Conference, 2022年08月
    英語, 口頭発表(一般)
  • Dynamic Correlation and Volatility Spillover Among Green Bonds, Clean Energy Stock, and Fossil Fuel Market               
    Tang, C; Aruga, K
    43rd IAEE International Conference, 2022年08月
    英語, 口頭発表(一般)
  • Effects of COVID-19 on Indian Energy Consumption               
    Aruga, K; Islam; Md. Monirul; Jannat, A
    43rd IAEE International Conference, 2022年08月
    英語, 口頭発表(一般)
  • Effects of the COVID-19 Pandemic on the Tokyo Wholesale Tuna Market               
    Aruga, K
    27th Annual Conference of the European Association of Environmental and Resource Economists, 2022年07月
  • Are retail investors willing to buy green bonds? A case for Japan               
    Aruga, K
    Pre-conference Workshop of the 27th Annual EAERE Conference: Green Bonds and Environmental Finance, 2022年06月
    英語, 口頭発表(一般)
  • Radiation knowledge and willingness to buy bottled water from regions near the Fukushima Daiichi Nuclear Power Plant               
    Aruga, K
    7th International Conference on Water Resource and Environment, 2021年11月, [招待有り]
    英語, 口頭発表(一般)
  • Investigating the effects of altruism on consumer preference for food from disaster-affected regions: a case of Japan               
    有賀健高; Bolt, Timothy
    環境経済・政策学会2021年大会, 2021年09月
    日本語, 口頭発表(一般)
  • 世界金融危機と新型コロナ危機が中国と国際化石燃料の価格関係に与えた影響               
    唐朝豊; 有賀健高
    環境経済・政策学会2021年大会, 2021年09月
    日本語, 口頭発表(一般)
  • Energy Policy Trade-Offs in Poland: A Best-Worst Scaling Discrete Choice Experiment               
    Aruga, K
    26th Annual Conference of the European Association of Environmental and Resource Economists, 2021年06月
    2021年06月 - 2021年06月, 英語, 口頭発表(一般)
  • Energy prices and COVID-immunity: the case of crude oil and natural gas prices in the US and Japan               
    Honorata Nyga-Łukaszewska; Kentaka Aruga
    The 1st IAEE Online conference, 2021年06月
    2021年06月 - 2021年06月, 英語, 口頭発表(一般)
  • Energy security of Poland and coal supply: price analysis               
    Kentaka Aruga; Honorata Nyga-Łukaszewska
    The 1st IAEE Online conference, 2021年06月
    2021年06月 - 2021年06月, 英語, 口頭発表(一般)
  • クラウドファンディング型地域循環共生圏支援策               
    有賀健高
    環境情報科学センター,一般公開シンポジウム「私の考える地域循環共生圏」, 2020年12月
    日本語
  • 消費を通じた被災地支援行動は消費者の利他的意識と関係しているのか               
    有賀健高
    環境経済・政策学会2020年大会, 2020年09月
    日本語
  • A Study on the Pass-Through Rate of the Exchange Rate on the LNG Import Price in China               
    唐朝豊; 有賀健高
    環境経済・政策学会2020年大会, 2020年09月
    日本語
  • 被災地復興支援の消費行動と利他的意識に関する研究               
    有賀健高
    2019年環境情報科学 研究発表大会, 2019年11月, [招待有り]
    日本語
  • Consumer Behavior to Support the Disaster Region and Altruistic Perception               
    有賀健高
    環境経済・政策学会2019年大会, 2019年09月
    2019年09月, 英語, 口頭発表(一般)
  • Analyzing the condition of Japanese electricity cost linkages by fossil fuel sources after the Fukushima disaster               
    Aruga, K
    42nd IAEE International Conference, 2019年05月
    英語, 口頭発表(一般)
  • 福島原発近辺の水産物に関する消費者意識についての研究               
    有賀 健高
    環境経済・政策学会2018年大会, 2018年09月, [国内会議]
    日本語, 口頭発表(一般)
  • 農林水産物の放射能汚染と消費者意識 -風評被害はあったのか?-               
    有賀 健高
    埼玉大学連続市民講座 part 9, 2018年07月, [招待有り]
    日本語
  • 放射線に関する知識と福島原発近辺の水に対する購買意欲の関係               
    有賀 健高
    41st International IAEE conference, 2018年06月, [国際会議]
    英語, 口頭発表(一般)
  • 日本の水産物の地域市場は統合されているのか               
    有賀 健高
    International Symposium: Fisheris Science for Future Generations, 2017年09月, [国際会議]
    英語, 口頭発表(一般)
  • 風評被害が福島原発近辺の水産物市場に及ぼす影響               
    有賀 健高
    International Symposium: Fisheris Science for Future Generations, 2017年09月, [国際会議]
    英語, 口頭発表(一般)
  • アジア太平洋地域でエネルギーの環境クズネッツ曲線仮説は成立しているのか?               
    有賀 健高
    第40回国際エネルギー経済学会, 2017年06月, [国際会議]
    英語, 口頭発表(一般)
  • Consumer responses to agricultural products near the Fukushima nuclear plant               
    有賀 健高
    European Association of Environmental and Resource Economists 22nd Annual Conference, 2016年06月, [国際会議]
    英語, 口頭発表(一般)
  • Did the Financial Crisis of 2008 Affect the Price Linkages Among the Crude Oil and Precious Metal Markets?               
    有賀 健高
    39th IAEE International Conference, 2016年06月, [国際会議]
    英語, 口頭発表(一般)
  • Consumer responses to food products produced near the Fukushima nuclear plant               
    有賀 健高
    The 60th Annual Conference Australian Agricultural and Resource Economics Society, 2016年02月, [国際会議]
    英語, 口頭発表(一般)
  • 福島原子力発電所近辺で生産された農産物に対する消費者の反応               
    有賀 健高
    環境経済・政策学会2015年大会、京都, 2015年09月, [国内会議]
    日本語, 口頭発表(一般)
  • Consumer responses to food products produced near the Fukushima nuclear plant               
    有賀 健高
    38th International Association for Energy Economics International Conference, 2015年06月, [国際会議]
    英語, 口頭発表(一般)
  • Testing the international crude oil market integration with structural breaks               
    有賀 健高
    14th International Association for Energy Economics European Energy Conference, 2014年10月, [国際会議]
    英語, 口頭発表(一般)
  • 環境意識の高い消費者は福島原子力発電所近辺の食品購入に積極的なのか-消費者アンケート調査からの検証               
    有賀 健高
    環境経済・政策学会2014年大会, 2014年09月, [国内会議]
    日本語
  • Testing market integration for Japanese retail fish markets               
    有賀 健高
    EconWorld2014, 2014年06月, [国際会議]
    英語, 口頭発表(一般)
  • 日本の水産市場の地域統合に関する研究               
    有賀 健高
    環境経済・政策学会2013年大会, 2013年09月, [国内会議]
    日本語, 口頭発表(一般)
  • The U.S. Shale Gas Revolution and Its Effect on International Gas Markets               
    有賀 健高
    36th International Association for Energy Economics International Conference, 2013年06月, [国際会議]
    英語, 口頭発表(一般)
  • The impact of the shale gas revolution on the U.S. and Japanese natural gas markets               
    有賀 健高
    2013 Northeastern Agricultural and Resource Economics Association Annual Meeting, 2013年06月, [国際会議]
    英語, 口頭発表(一般)
  • 日本の平成17年度自動車排ガス規制の日米のパラジウム国際市場への影響               
    有賀 健高
    環境経済・政策学会2012年大会, 2012年09月, [国内会議]
    日本語, 口頭発表(一般)
  • Is the ethanol market independent from the existing motor fuel and oil crop markets?               
    有賀 健高
    35th International Association for Energy Economics International Conference, 2012年06月, [国際会議]
    英語, 口頭発表(一般)
  • Linkages among the non-genetically modified organism soybean and conventional soybean, and corn futures markets in the Tokyo Grain Exchange               
    有賀 健高
    18th Annual Conference of the European Association of Environmental and Resource Economists, 2011年06月, [国際会議]
    英語, 口頭発表(一般)
  • Linkage among the U.S. energy futures markets               
    有賀 健高
    34th International Association for Energy Economics International Conference,, 2011年06月, [国際会議]
    英語, 口頭発表(一般)
■ 担当経験のある科目_授業
  • 2021年04月 - 現在
    環境経済学, 埼玉大学
  • 環境政策論, 埼玉大学
  • 農林産政策学, 石川県立大学
  • 経済学, 石川県立大学
  • 生物資源経済学, 石川県立大学
■ 所属学協会
  • 環境経済・政策学会
  • International Association for Energy Economics
  • 環境情報科学センター
■ 共同研究・競争的資金等の研究課題
  • サステナブルファイナンスの拡大とインパクトに関する研究:気候変動と生物多様性に焦点をあ てて               
    環境再生保全機構, 環境研究総合推進費, 2024年04月 - 2027年03月
    森田香菜子; 有賀健髙; 清水規子; 松本 健一; 山本 裕基, 研究分担者
    課題番号:2MF-2402
  • グリーンボンドの購買行動に利他的意識が与える影響               
    日本学術振興会, 科学研究費助成事業, 基盤研究(B), 2022年04月01日 - 2026年03月31日
    有賀 健高, 埼玉大学
    配分額(総額):17030000, 配分額(直接経費):13100000, 配分額(間接経費):3930000
    課題番号:22H03808
    論文ID:49546951
  • 水産業における商品価値の研究               
    日本学術振興会, 科学研究費助成事業, 基盤研究(A), 2021年04月05日 - 2026年03月31日
    八木 信行; 有賀 健高; 大石 太郎; 阪井 裕太郎; 杉野 弘明; 鈴木 崇史; 東田 啓作; 若松 宏樹, 東京大学
    配分額(総額):41600000, 配分額(直接経費):32000000, 配分額(間接経費):9600000
    水産物は、規格品である工業製品とは異なり多様性を有している。この中、グローバルな規模でクロマグロなどの高級魚は過剰漁獲が問題となる一方で、日本のローカルレベルではシイラなどの不人気魚は買い手がつかず水揚げ港で投棄される例も多い。資源を有効に人類が活用するためにはAIなどを活用して顧客の個人的な商品嗜好を個別に分析し「おすすめ商品」を提示するアプローチが存在する。本研究ではこの基盤となる情報や考え方を体系的に整備するため、日本だけでなく外国の消費者などを対象とし、人間が自然環境や食物に対して感じる多様な価値観がどこから生じているのかを本質的に解明することを目指す。
    本年度の成果としては、日本の消費者が、東日本大震災の被災地で生産される水産物に対して抱く価値を明らかにした。具体的には、消費者は被災地水産物を応援買いをする意思があるが、この意思は震災直後に高く、時間が経つにつれて弱まった点、また放射性物質への忌避感を有するが、これは震災直後から比較的高いレベルで続いている点、更には水産物を自己の関心事項(栄養摂取などの食品本来の価値)に基づいて消費する意思は震災直後より最近の方が高まっていることなどを解明し、学会誌にて発表した(鈴木・八木(2021))。これは、応援買いという社会的な行動を消費者がとる傾向がある時期は数年程度と短く、一方で自己の関心事項に基づく消費は永続する傾向を示した点で、意義が存在する。また別途、シンガポールにおいて水産物消費者の意識調査を実施し、抱卵した水産物への選好が消費者の宗教により異なる点も明らかにした(Sayeed et.al, 2021)。更にエコラベル製品に関する生産者側の意識が賞筆者と異なっている点を明らかにした(Ishihara et al., 2021)。研究成果は国際ジャーナルで発表しており、学術的貢献は一定水準で達成できたと考える。
    課題番号:21H04738
  • 被災地支援に消費者の利他的意識が与える影響ー東日本大震災の事例からー               
    日本学術振興会, 科学研究費助成事業, 若手研究, 2018年04月01日 - 2022年03月31日
    有賀 健高, 埼玉大学
    配分額(総額):4290000, 配分額(直接経費):3300000, 配分額(間接経費):990000
    選択実験を使ったアンケート調査の分析から、第一に利他的意識が高い人ほど、被災地復興支援のための消費に積極的な傾向が見られた。第二に高年齢や高学歴の消費者は被災地支援の消費に消極的であるが、男性や高所得の消費者はそうでない消費者よりも支援に前向きである傾向が見られた。第三に被災地支援の消費行動と消費者の被災地との社会的なつながりの関係を国内と外国の被災地への支援行動を比較することで検証した。その結果、外国地域の音楽やドラマへの関心があるといった文化的なつながりであっても被災地との一定の社会的なつながりがあれば、こういったつながりを育むことは、消費を通じた復興支援に有効である可能性が示唆された。
    課題番号:18K12763
  • 福島原子力発電所事故以降の放射能による食品汚染に対する消費者の意識調査研究               
    日本学術振興会, 科学研究費助成事業, 若手研究(A), 2013年04月01日 - 2016年03月31日
    有賀 健高, 石川県立大学
    配分額(総額):5980000, 配分額(直接経費):4600000, 配分額(間接経費):1380000
    福島県での生産量が多い農林水産物及び水の計10品目に関して、日本全国の約8700人の消費者を対象にアンケートを実施し、福島第一原子力発電所事故後の風評被害の実態について探った。アンケートデータを分析した結果、放射線に関する知識がなく、原発から遠方に住むため普段原発近辺の食品をあまり目にしない消費者ほど原発近辺の食品を買うのを避ける傾向があり、こういった消費者は風評に影響されやすい可能性が示唆された。一方、放射線の危険性についての知識があり、風評ではなく自分の判断に基づいて購買を回避している消費者の場合は、風評ではなく実害もあるという考えから購買を回避している面もあることが明らかとなった。
    課題番号:25712025
■ 学術貢献活動
  • 環境経済・政策学会 2023 年大会 企業と環境(1)               
    パネル司会・セッションチェア等
    環境経済・政策学会, 2023年09月30日 - 2023年10月01日
    学会・研究会等
  • 43rd IAEE International Conference               
    パネル司会・セッションチェア等
    IAEE, 2023年07月31日 - 2023年08月03日
    学会・研究会等
  • 27th Annual Conference of the European Association of Environmental and Resource Economics               
    パネル司会・セッションチェア等
    European Associaion of Environmental and Resource Economics, 2022年06月28日 - 2022年07月01日
    学会・研究会等
  • Workshop on "Green Bonds and Environmental Finance"               
    パネル司会・セッションチェア等
    International Centre for Economic Analysis, 2022年06月27日
    学会・研究会等
  • 22nd Annual Conference of Environmental and Resource Economics               
    パネル司会・セッションチェア等
    European Associaion of Environmental and Resource Economics, 2016年06月22日 - 2016年06月25日
    学会・研究会等
■ 社会貢献活動
  • Scientific Reports               
    編集
    Springer Nature, 2024年02月 - 現在
  • ISFJ2024 政策フォーラム 環境・エネルギー①分科会               
    コメンテーター
    ISFJ, 2024年11月
  • サステイナブル・ファイナンス実務⑤グリーンボンドと投資家判断               
    講師
    東京大学大学院新領域創成科学研究科サステイナブル・ファイナンス・スクール, 2024年07月10日
  • 現代的問題(食品ロス問題)               
    講師
    埼玉未来大学, 2024年06月21日
  • ESGに異を唱える               
    寄稿
    埼玉新聞社, 埼玉新聞, 2024年04月12日
  • ISFJ2023 政策フォーラム 環境・エネルギー分科会 中間報告会               
    コメンテーター
    ISFJ, 2023年09月
  • Frontiers in Sustainable Cities               
    編集長
    frontiers, 2021年12月 - 2022年12月
  • CEMS Global Citizenship Seminar: The situation of the Japanese energy policies related to SDG 7               
    講師
    SGH Warsaw School of Economics, 2022年02月19日
  • 自治体のためのSDGsプログラム 第2回「環境と経済」               
    講師
    埼玉大学, 2021年
  • 環境問題と経済学               
    講師
    埼玉大学, 2019年
  • 原発事故とエネ転換               
    寄稿
    埼玉新聞社, 埼玉新聞, 2018年11月09日
TOP