Faculty Members

LANGUAGE ≫ Japanese


Ph.D., Cornell University

Areas of specialization Experimental economics, environmental economics, international development and sustainability science
Laboratory/research office Laboratory for Environmental Economics and International Development
Human society is globalizing ever more rapidly. At the same time, many environmental and development problems have arisen, notably global climate change, international conflicts and economic inequality. It is widely recognized that these difficult problems cannot be solved without cooperation and coordination among nations and individuals. Given this state of affairs, we are working to analyze scientifically how these problems could be properly framed and solved via economics, management and experimental methods that induce people, culture and societies to be sustainable. Our research focuses on cases in not only Japan but also other countries, especially developing nations, where many problems are more serious than in industrialized countries. The comparison of our analysis between Japan and other nations should lead to the clarification of what types of cooperation and policies are essential for the solution of current pressing problems such as climate change and sustainable development.
Current research topics
Educational background 2005: Doctor, Cornell University
Professional background 2012-2014: Professor, International University of Japan
2009-2012: Associate Professor, International University of Japan
2008-2009: Assistant Professor, International University of Japan
2006-2007: JSPS research fellow, Yokohama National University
2005-2006: COE research fellow, Yokohama National University
Academic societies

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* Courses provided in English are shown with (E) mark

Undergraduate school
  • Current Economic Issues
  • Introduction to Economics and Management(E)
  • Experimental Design for Social Sciences
  • Global Competency Model (E)
  • International Development Economics(E)
  • Specialized Seminar I
  • Specialized Seminar II
  • Seminar I
  • Seminar II
  • Seminar I (Management and Mathematics)
  • Seminar III
  • Seminar II (Management and Mathematics)
  • Seminar III (Management and Mathematics)
  • Project Research
Graduate school
  • Advanced Seminar 1
  • Advanced Seminar 2

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Research activities

Research papers
  1. Authors: Sharofiddinov Husniddin, Moinul Islam, Koji Kotani
    Title: How does the number of water users in a land reform matter for water availability in agriculture?
    Journal: Agricultural Water Management, Vol. 291, p. 108677, Elsevier
    Year: 2024
  2. Authors: Moinul Islam, Koji Kotani, Shunsuke Managi
    Title: Nature dependence and seasonality change perceptions for climate adaptation and mitigation
    Journal: Economic Analysis and Policy, Vol. 81, pp. 34-44, Elsevier
    Year: 2024
  3. Authors: Raja Rajendra Timilsina, Koji Kotani, Yoshinori Nakagawa, Tatsuyoshi Saijo
    Title: Does being intergenerationally accountable resolve intergenerational sustainability dilemma?
    Journal: Land Economics, Vol. 99, pp. 644-667
    Year: 2023
  4. Authors: Junichi Hirose, Koji Kotani, Shunsuke Managi
    Title: Do autonomy and inquisitiveness contribute to SDGs? Implications from the matrilineal island of Palau
    Journal: Economic Analysis and Policy, Vol. 79, pp. 303-318, Elsevier
    Year: 2023
  5. Authors: Rendra Putra, Kostiantyn Ovsiannikov, Koji Kotani
    Title: COVID-19-associated income loss and job loss: Evidence from Indonesia
    Journal: Journal of Asian Economics, Vol. 87, p. 101631, Elsevier
    Year: 2023
  6. Authors: Mst. Asma Khatun, Koji Kotani
    Title: Intrahousehold food intake inequality by family roles and age groups
    Journal: Nutrients, Vol. 15, p. 2126, MDPI
    Year: 2023
  7. Authors: Jyunichi Hirose, Koji Kotani
    Title: How does inquisitiveness matter for generativity and happiness?
    Journal: PLoS ONE, Vol. 17, p. e0264222
    Year: 2022
  8. Authors: Koirala Pankaj, Koji Kotani, Shunsuke Managi
    Title: How do farm size and perceptions matter for farmers’ adaptation responses to climate change in a developing country? Evidence from Nepal
    Journal: Economic Analysis and Policy, Vol. 74, pp. 188-204, Elsevier
    Year: 2022
  9. Authors: Raja Rajendra Timilsina, Koji Kotani, Yoshinori Nakagawa, Tatsuyoshi Saijo
    Title: Intragenerational deliberation and intergenerational sustainability dilemma
    Journal: European Journal of Political Economy, Vol. 73, p. 102131, Elsevier
    Year: 2022
  10. Authors: Santosh Shrestha, Koji Kotani, Makoto Kakinaka
    Title: The relationship between trade openness and government resource revenue in resource-dependent countries
    Journal: Resources Policy, Vol. 74, p. 102332, Elsevier
    Year: 2021
  11. Authors: Jyunichi Hirose, Koji Kotani, Yoshinori Nakagawa
    Title: Is climate change induced by humans? The impact of the gap in perceptions on cooperation
    Journal: Economics of Disasters and Climate Change, Vol. 5, pp. 391-413, Springer
    Year: 2021
  12. Authors: Koirala Pankaj, Raja Rajendra Timilsina, Koji Kotani
    Title: Deliberative forms of democracy and intergenerational sustainability dilemma
    Journal: Sustainability, Vol. 13, p. 7377, MDPI
    Year: 2021
  13. Authors: Khatun Mst Asma, Koji Kotani
    Title: Salinity and water-related disease risk in coastal Bangladesh
    Journal: EcoHealth, Vol. 18, pp. 61-75, Springer
    Year: 2021
  14. Authors: Khatun Mst Asma, Shibly Shahrier, Koji Kotani
    Title: Cooperation and cognition gaps for salinity: A field experiment of information provision in urban and rural areas of Bangladesh
    Journal: Journal of Cleaner Production, Vol. 311, p. 127562, Elsevier
    Year: 2021
  15. Authors: PANDIT Arpana, Yoshinori Nakagawa, Raja Rajendra Timilsina, Koji Kotani, Tatsuyoshi Saijo
    Title: Taking the perspectives of future generations as an effective method for achieving sustainable waste management
    Journal: Sustainable Production and Consumption , Vol. 27, pp. 1526-1536, Elsevier
    Year: 2021
  16. Authors: JINGCHAO ZHANG, Koji Kotani, Tatsuyoshi Saijo
    Title: Are the societies becoming proself? A topographical difference under fast urbanization in China
    Journal: Environment, Development and Sustainability, Vol. 23, pp. 12976-12993, Springer
    Year: 2021
  17. Authors: SHAHEN Mostafa Elsayed Ahmed Mohamed, Koji Kotani, Tatsuyoshi Saijo
    Title: Intergenerational sustainability is enhanced by taking the perspective of future generations
    Journal: Scientific Reports, Vol. 11, p. 2437, Nature research
    Year: 2021
  18. Authors: Raja Rajendra Timilsina, Koji Kotani, Yoshinori Nakagawa, Tatsuyoshi Saijo
    Title: Concerns for future generations in societies: A deliberative analysis of the intergenerational sustainability dilemma
    Journal: Journal of Behavioral and Experimental Economics, Vol. 90, p. 101628, Elsevier
    Year: 2021
  19. Authors: Raja Rajendra Timilsina, Yoshinori Nakagawa, Koji Kotani
    Title: Exploring the possibility of linking and incorporating future design in backcasting and scenario planning
    Journal: Sustainability, Vol. 12, p. 9907, MDPI
    Year: 2020
  20. Authors: SHAHEN Mostafa Elsayed Ahmed Mohamed, Koji Kotani, Makoto Kakinaka, Shunsuke Managi
    Title: Wage and labor mobility between public, formal private and informal private sectors in a developing country
    Journal: Economic Analysis and Policy, Vol. 68, pp. 101-113, Elsevier
    Year: 2020
  21. Authors: Taichi Mutoh, Koji Kotani, Makoto Kakinaka
    Title: An overseas business paradox: Are Japanese general contractors risk takers?
    Journal: PLoS ONE, Vol. 15, p. e0238570, PLOS
    Year: 2020
  22. Authors: SHAHEN Mostafa Elsayed Ahmed Mohamed, Masaya Wada, Koji Kotani, Tatsuyoshi Saijo
    Title: Motivational factors in intergenerational sustainability dilemma: A post-interview analysis
    Journal: Sustainability, Vol. 12, p. 7078, MDPI
    Year: 2020
  23. Authors: Shukria Hotak, Moinul Islam, Makoto Kakinaka, Koji Kotani
    Title: Carbon emissions and carbon trade balances: International evidence from panel ARDL analysis
    Journal: Environmental Science and Pollution Research, Vol. 27, pp. 24115-24128, Elsevier
    Year: 2020
  24. Authors: Yayan Hernuryadin, Koji Kotani, Tatsuyoshi Saijo
    Title: Time preferences of food producers: Does ``cultivate and grow'' matter?
    Journal: Land Economics, Vol. 96, pp. 132-148, The University of Wisconsin Press
    Year: 2020
  25. Authors: SHAHEN Mostafa Elsayed Ahmed Mohamed, Shahrier Shibly, Koji Kotani
    Title: Happiness, generativity and social preferences in a developing country: A possibility of future design
    Journal: Sustainability, Vol. 11, p. 5256, MDPI
    Year: 2019
  26. Authors: Yoshinori Nakagawa, Real Arai, Koji Kotani, Masanobu Nagano, Tatsuyoshi Saijo
    Title: An intergenerational retrospective viewpoint promotes financially sustainable attitudes
    Journal: Futures, Vol. 114, p. 102454, Elsevier
    Year: 2019
  27. Authors: Yayan Hernuryadin, Koji Kotani, Yoshio Kamijo
    Title: Time preferences between individuals and groups in the transition from hunter-gatherer to industrial societies
    Journal: Sustainability, Vol. 11, p. 395, MDPI
    Year: 2019
  28. Authors: Shahrier Shibly, Koji Kotani
    Title: Natural disaster mitigation through voluntary donations in a developing country: The case of Bangladesh
    Journal: Environmental Economics and Policy Studies, Vol. 21, pp. 37-60, Springer
    Year: 2019
  29. Authors: Zhang Jingchao, Koji Kotani, Tatsuyoshi Saijo
    Title: Low-quality or high-quality coal? Household energy choice in rural Beijing
    Journal: Energy Economics, Vol. 78, pp. 81-90, Elsevier
    Year: 2019
  30. Authors: Koji Kotani, Kenta Tanaka, Shunsuke Managi
    Title: Which performs better under trader settings, double auction or uniform price auction?
    Journal: Experimental Economics, Vol. 22, pp. 247-267, Springer
    Year: 2019
  31. Authors: Yoshinori Nakagawa, Koji Kotani, Mika Matsumoto, Tatsuyoshi Saijo
    Title: Intergenerational retrospective viewpoints and individual policy preferences for future: A deliberative experiment for forest management
    Journal: Futures, Vol. 105, pp. 40-53, Elsevier
    Year: 2019
  32. Authors: Raja Rajendra Timilsina, Koji Kotani, Yoshio Kamijo
    Title: Generativity and social value orientation between rural and urban societies in a developing country
    Journal: Futures, Vol. 105, pp. 124-132, Elsevier
    Year: 2019
  33. Authors: Zhang Jingchao, Koji Kotani, Tatsuyoshi Saijo
    Title: Public acceptance of environmentally friendly heating in Beijing: A case of a low temperature air source heat pump
    Journal: Energy Policy, Vol. 117, pp. 75-85, Elsevier
    Year: 2018
  34. Authors: Toru Ota, Makoto Kakinaka, Koji Kotani
    Title: Demographic effects on residential electricity and city gas consumption in the aging society of Japan
    Journal: Energy Policy, Vol. 115, pp. 503-513, Elsevier
    Year: 2018
  35. Authors: Raja Rajendra Timilsina, KOJI KOTANI
    Title: Evaluating the potential of marketable permits in a framed field experiment: Forest conservation in Nepal
    Journal: Journal of Forest Economics, Vol. 29, No. A, pp. 25-37, Elsevier
    Year: 2017
  36. Authors: Shahrier Shibly, KOJI KOTANI, SAIJOTatsuyoshi
    Title: Intergenerational sustainability dilemma and the degree of capitalism in societies: A field experiment
    Journal: Sustainability Science, Vol. 12, No. 6, pp. 957-967, Springer
    Year: 2017
  37. Authors: KOJI KOTANI, Makoto Kakinaka
    Title: Some implications of environmental regulation on social welfare under learning-by-doing of eco-products
    Journal: Environmental Economics and Policy Studies, Vol. 19, pp. 121-149, Springer
    Year: 2017
  38. Authors: Raja Rajendra Timilsina, KOJI KOTANI, KAMIJO Yoshio
    Title: Sustainability of common pool resources
    Journal: PLoS ONE, Vol. 12, p. e0170981, PLoS
    Year: 2017
  39. Authors: Lkhagva Gerelmaa, KOJI KOTANI
    Title: Further investigation of natural resources and economic growth: Do natural resources depress economic growth?
    Journal: Resources Policy, Vol. 50, pp. 312-320, Elsevier
    Year: 2016
  40. Authors: Shibly Shahrier, KOJI KOTANI, Makoto Kakinaka
    Title: Social value orientation and capitalism in societies
    Journal: PLoS ONE, Vol. 11, p. e0165067, PLoS
    Year: 2016
  41. Authors: Shahrier Shibly, KOJI KOTANI
    Title: Labor donation or money donation? Pro-sociality on prevention of natural disasters in a case of cyclone AILA, Bangladesh
    Journal: Singapore Economic Review, Vol. 61, p. 1640007, World Scientific
    Year: 2016
  42. Authors: Moinul Islam, KOJI KOTANI, Shunsuke Managi
    Title: Climate perception and flood mitigation cooperation: a Bangladesh case study
    Journal: Economic Analysis and Policy, Vol. 49, pp. 117-133, Elsevier
    Year: 2016
  43. Authors: Islam Moinul, KOJI KOTANI
    Title: Changing seasonality in Bangladesh
    Journal: Regional Environmental Change, Vol. 16, pp. 585-590, Springer
    Year: 2016
  44. Authors: Sri Lestari, KOJI KOTANI, Makoto Kakinaka
    Title: Enhancing voluntary participation in community collaborative forest management: A case of Central Java, Indonesia
    Journal: Journal of Environmental Management, Vol. 150, pp. 299-309, Elsevier
    Year: 2015
  45. Authors: Mubashir Qasim, KOJI KOTANI
    Title: An empirical analysis of energy shortage in Pakistan
    Journal: Asia Pacific Development Journal, Vol. 15, No. 4, pp. 137-166, UNITED NATIONS ESCAP
    Year: 2014
  46. Authors: KOJI KOTANI, Kenta Tanaka, Shunsuke Managi
    Title: Cooperative choice and its framing effect under threshold uncertainty in a provision point mechanism
    Journal: Economics of Governance, Vol. 15, pp. 329-353, Springer
    Year: 2014
  47. Authors: Fitriandi Primandita, Makoto Kakinaka, KOJI KOTANI
    Title: Foreign direct investment and infrastructure development in Indonesia: Evidence from province data
    Journal: Asian Journal of Empirical Research, Vol. 4, No. 1, pp. 79-94, Asian Economic and Social Society
    Year: 2014
  48. Authors: Santosh Poudel, KOJI KOTANI
    Title: Climatic impacts on crop yield and its variability in Nepal: Do they vary across seasons and altitudes?
    Journal: Climatic Change, Vol. 116, No. 2, pp. 327-355
    Year: 2013
  49. Authors: Neal Detert, KOJI KOTANI
    Title: Real options approach to renewable energy investments in Mongolia
    Journal: Energy Policy, Vol. 56, pp. 136-150
    Year: 2013
  50. Authors: Prabhat Barnwal, KOJI KOTANI
    Title: Climatic impacts across agricultural crop yield distributions: An application of quantile regressions on rice crops in Andhra Pradesh, India
    Journal: Ecological Economics, Vol. 87, pp. 95-109
    Year: 2013
  51. Authors: Zhang Jingchao, KOJI KOTANI
    Title: The determinants of household energy demand in rural Beijing: Can environmentally friendly technologies be effective?
    Journal: Energy Economics, Vol. 34, No. 2, pp. 381-388
    Year: 2012
  52. Authors: Sok Heng Lay, Makoto Kakinaka, KOJI KOTANI
    Title: Exchange rate movements in a dollarized economy: The case of Cambodia
    Journal: ASEAN Economic Bulletin, Vol. 29, No. 1, pp. 65-78
    Year: 2012
  53. Authors: Suyanto, KOJI KOTANI
    Title: The effect of net migration on the population-growth relationship in Indonesia
    Journal: Asian Journal of Empirical Research , Vol. 2, No. 2, pp. 62-72
    Year: 2012
  54. Authors: KOJI KOTANI, Makoto Kakinaka, Hiroyuki Matsuda
    Title: Optimal invasive species management under multiple uncertainties
    Journal: Mathematical Biosciences, Vol. 233, No. 1, pp. 32-46
    Year: 2011
  55. Authors: Indra Nurcahyo Sjarif, KOJI KOTANI, Ching-Yang Lin
    Title: Exports and economic growth in Indonesia's fishery sub-sector: Cointegration and error-correction models
    Journal: Empirical Economics Letters , Vol. 10, pp. 679-686
    Year: 2011
  56. Authors: Makoto Kakinaka, KOJI KOTANI
    Title: An interplay between intrinsic and extrinsic motivations on voluntary contributions to a public good in a large economy
    Journal: Public Choice, Vol. 147, No. 1-2, pp. 29-41
    Year: 2011
  57. Authors: KOJI KOTANI, Kent D. Messer, William D. Schulze
    Title: Matching grants and charitable giving: Why people sometimes provide a helping hand to fund environmental goods
    Journal: Agricultural and Resource Economics Review, Vol. 39, No. 2, pp. 324-343
    Year: 2010
  58. Authors: KOJI KOTANI, Makoto Kakinaka, Hiroyuki Matsuda
    Title: Adaptive management for eradication of exotic species
    Journal: Population Ecology, Vol. 52, No. 3, pp. 349-358
    Year: 2010
  59. Authors: Naoto Kato, KOJI KOTANI, Seiya Ueno, Hiroyuki Matsuda
    Title: Optimal risk management of human alveolar echinococcosis with vermifuge
    Journal: Journal of Theoretical Biology, Vol. 267, No. 3, pp. 265-271
    Year: 2010
  60. Authors: KOJI KOTANI, Hiromasa Ishii, Hiroyuki Matsuda, Tohru Ikeda
    Title: Invasive species management in two-patch environments: Agricultural damage control in the raccoon (Procyon loter) problem, Hokkaido, Japan
    Journal: Population Ecology , Vol. 51, No. 4, pp. 493-504
    Year: 2009
  61. Authors: Seiichi Oyamada, Yasuhiro Ueno, Mitsutaku Makino, KOJI KOTANI, Hiroyuki Matsuda
    Title: Bio-economic assessment of size separators in Pacific saury fishery
    Journal: Fisheries Science, Vol. 75, No. 2, pp. 273-283
    Year: 2009
  62. Authors: KOJI KOTANI, Makoto Kakinaka, Hiroyuki Matsuda
    Title: Dynamic economic analysis on invasive species management: Some policy implications of catchability
    Journal: Mathematical Biosciences, Vol. 220, No. 1, pp. 1-14
    Year: 2009
  63. Authors: Hiroyuki Matsuda, Mitsutaku Makino, KOJI KOTANI
    Title: Optimal fishing policies that maximize sustainable ecosystem services
    Journal: Fisheries for Global Welfare and Environment, pp. 359-369
    Year: 2008
  64. Authors: KOJI KOTANI, Makoto Kakinaka, Hiroyuki Matsuda
    Title: Optimal escapement levels on renewable resource management under process uncertainty: some implications of convex unit harvest cost
    Journal: Environmental Economics and Policy Studies, Vol. 9, No. 2, pp. 107-118
    Year: 2008
  65. Authors: KOJI KOTANI, Shunsuke Managi, Kenta Tanaka
    Title: Further investigations of framing effects on cooperative choices in a provision point mechanism
    Journal: Economics Bulletin, Vol. 3, No. 81, pp. 1-9
    Year: 2008
  66. Authors: Jon M. Conrad, KOJI KOTANI
    Title: When to drill?: Trigger prices for the Arctic National Wildlife Refuge
    Journal: Resource and Energy Economics, Vol. 27, No. 4, pp. 273-286
    Year: 2005
Invited lectures
  1. Night School Lecture 4: Future Design and Economics "Future Design, Sustainability, Future Possibilities, and its Application to Economics and Management and its applicability to economics and management., Economics Design Inc., Online, 2023
  2. Night School Lecture 3: Future Design and Economics "What kind of changes can Future Design bring about in people and organizations? Findings and Results of Experimental Economics Research to Date", Economics Design Inc., Online, 2023
  3. Night School Lecture 2: Future Design and Economics "What kind of study is Future Design? From the Perspective of Futurology", Economics Design Inc., Online, 2023
  4. Night School Lecture1: Future Design and Economics "Why do we need a discipline and way of thinking like Future Design? From an economics perspective", Economics Design Inc., Online, 2023
  5. Does perspective-taking promote intergenerational sustainability?, Annual Conference of Taiwan Environmental and Resource Economics, Online conference, 2020
  6. Economic experiments and future design, Ecodesign 2019, Pacifico Yokohama, 2019
Grants-in-Aid for Scientific Research from the Japanese government
  1. Project title: Economic analysis on people's cooperative attitudes for countermeasures against disasters and anomalies of climate change
    Category: Grant-in-Aid for Scientific Research (C)
    Project number: 24530276
    Project period: 2012-2014
    Total budget amount: 5,070,000 yen
  2. Project title: Cooperative in collection action under uncertainty and ambiguity associated with climate change
    Category: Grant-in-Aid for Scientific Research (B)
    Project number: 16H03621
    Project period: 2016-2018
    Total budget amount: 9,100,000 yen
  3. Project title: Intergenerational sustainability of common pool resources: Theoretical and experimental approaches
    Category: Grant-in-Aid for Challenging Exploratory Research
    Project number: 16K13362
    Project period: 2016-2017
    Total budget amount: 3,120,000 yen
  4. Project title: Economic theory and experiments on risk behavior under asymmetric uncertainty and ambiguity with a sizable impact
    Category: Grant-in-Aid for Scientific Research (B)
    Project number: 19H01485
    Project period: 2019-2021
    Total budget amount: 11,830,000 yen

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Social activities

Committee roles
  1. Society for Environmental Economics and Policy Studies, 2017 Annual Conference, Executive Committee Chairman, Society for Environmental Economics and Policy Studies, 2017-2018

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