YOSHIHIKO KADOYA

Last Updated :2025/06/21

Affiliations, Positions
Graduate School of Humanities and Social Sciences, Professor
Web Site
http://home.hiroshima-u.ac.jp/ykadoya/
E-mail
ykadoyahiroshima-u.ac.jp
Self-introduction
Yoshihiko Kadoya is Distinguished Professor of Hiroshima University, the Director of Hiroshima Institute of Health Economics Research (HiHER) and Professor of Economics at Hiroshima University. His research fields include health economics, health services research, financial literacy, and public policy.

Basic Information

Educational Backgrounds

  • University of Sydney, PhD

Academic Degrees

  • Waseda University
  • The University of Sydney

In Charge of Primary Major Programs

  • Economic Analysis
  • Economic Analysis

Research Fields

  • Social sciences;Economics;Public finance / Public economy
  • Social sciences;Economics;Economic policy
  • Social sciences;Economics;Money / Finance
  • Social sciences;Economics;Economic statistics
  • Medicine,dentistry, and pharmacy;Society medicine;Hygiene and public health
  • Medicine,dentistry, and pharmacy;Society medicine;Epidemiology and preventive medicine
  • Complex systems;Social / Safety system science;Social systems engineering / Safety system

Research Keywords

  • Health Economics, Aging Society, Gerontology, Financial Literacy, Social Security System, Long-Term Care, COVID-19, Loneliness & Social Isolation, Financial Fraud, Addiction, Work-Life Balance, Emotion Studies, Tactile Marketing, Behavior Modification

Educational Activity

Course in Charge

  1. 2025, Liberal Arts Education Program1, 1Term, Introductory Seminar for First-Year Students
  2. 2025, Undergraduate Education, Year, Seminar
  3. 2025, Undergraduate Education, Year, Bachelor's Thesis
  4. 2025, Undergraduate Education, 2Term, Health Economics 1
  5. 2025, Undergraduate Education, 3Term, Health Economics 2
  6. 2025, Graduate Education (Master's Program) , 1Term, Special Lecture of Humanities and Social Sciences
  7. 2025, Graduate Education (Master's Program) , 4Term, Special Lecture of Humanities and Social Sciences
  8. 2025, Graduate Education (Master's Program) , 1Term, Special Lecture of Humanities and Social Sciences
  9. 2025, Graduate Education (Master's Program) , 4Term, Special Lecture of Humanities and Social Sciences
  10. 2025, Graduate Education (Master's Program) , 4Term, Health Economics
  11. 2025, Graduate Education (Master's Program) , Year, Special Topics
  12. 2025, Graduate Education (Doctoral Program) , Year, Special Topics
  13. 2025, Graduate Education (Doctoral Program) , Year, Special Topics
  14. 2025, Graduate Education (Master's Program) , Year, Special Topics
  15. 2025, Graduate Education (Master's Program) , First Semester, Special Seminar on Economics Program I
  16. 2025, Graduate Education (Master's Program) , Second Semester, Special Seminar on Economics Program

Research Activities

Academic Papers

  1. What determines investment in the Nippon Individual Savings Account? an investigation of Japan's tax-exempt investment account, PLOS ONE, 20(2), 20250206
    Link to Paper Search Results by DOI
  2. Overconfidence, financial literacy, and panic selling: Evidence from Japan, PLOS ONE, 20(3), 20250321
    Link to Paper Search Results by DOI
  3. Beyond knowledge: the impact of financial attitude and behavior on panic selling during market crises, COGENT ECONOMICS & FINANCE, 13(1), 20251231
    Link to Paper Search Results by DOI
  4. The Impact of Hyperbolic Discounting on Asset Accumulation for Later Life: A Study of Active Investors Aged 65 Years and over in Japan, RISKS, 13(1), 202501
    Link to Paper Search Results by DOI
  5. Emotional Instability and Financial Decisions: How Neuroticism Fuels Panic Selling, RISKS, 12(12), 202412
    Link to Paper Search Results by DOI
  6. Impact of financial literacy and education on breast and cervical cancer screening participation in Japan, PLOS ONE, 19(11), 20241113
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  7. Navigating Time-Inconsistent Behavior: The Influence of Financial Knowledge, Behavior, and Attitude on Hyperbolic Discounting, BEHAVIORAL SCIENCES, 14(11), 202411
    Link to Paper Search Results by DOI
  8. Behavioral Biases in Panic Selling: Exploring the Role of Framing during the COVID-19 Market Crisis, RISKS, 12(10), 202410
    Link to Paper Search Results by DOI
  9. Unraveling Investor Behavior: The Role of Hyperbolic Discounting in Panic Selling Behavior on the Global COVID-19 Financial Crisis, BEHAVIORAL SCIENCES, 14(9), 202409
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  10. Temporal dynamics of payment choices: Unraveling the interplay between time preferences and credit card utilization in Japan, COGENT ECONOMICS & FINANCE, 12(1), 20241231
    Link to Paper Search Results by DOI
  11. How Does Smartphone Use Impact Loneliness in the Post-COVID Landscape in Japan?, BEHAVIORAL SCIENCES, 14(4), 202404
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  12. Could Having Access to Real-Time Data on Your Emotions Influence Subsequent Behavior? Evidence from a Randomized Controlled Trial of Japanese Office Workers, BEHAVIORAL SCIENCES, 14(3), 202403
    Link to Paper Search Results by DOI
  13. Does the Easing of COVID-19 Restrictive Measures Improve Loneliness Conditions? Evidence from Japan, SUSTAINABILITY, 15(24), 202312
    Link to Paper Search Results by DOI
  14. Information Sources for Investment Decisions: Evidence from Japanese Investors, INTERNATIONAL JOURNAL OF FINANCIAL STUDIES, 11(4), 202312
    Link to Paper Search Results by DOI
  15. Loneliness during the COVID-19 Pandemic: A Comparison of Urban and Rural Areas, SUSTAINABILITY, 15(16), 202308
    Link to Paper Search Results by DOI
  16. The Association of Caregivers' Socio-Economic Conditions with Family Caregiving Norms: Evidence from China, BEHAVIORAL SCIENCES, 13(5), 20230426
    Link to Paper Search Results by DOI
  17. Impulsivity and Alcohol-Drinking Behavior: Evidence from Japan, BEHAVIORAL SCIENCES, 13(5), 20230508
    Link to Paper Search Results by DOI
  18. Who Became Victims of Financial Frauds during the COVID-19 Pandemic in Japan?, Sustainability, 20230201
    Link to Paper Search Results by DOI
  19. Time Discounting and Hand-Sanitization Behavior: Evidence from Japan, Sustainability, 20230411
    Link to Paper Search Results by DOI
  20. Financial Literacy and Impulsivity: Evidence from Japan, Sustainability, 15(9), 20230524
    Link to Paper Search Results by DOI
  21. Pandemic Fatigue in Japan: Factors Affecting the Declining COVID-19 Preventive Measures, SUSTAINABILITY, 15(7), 202304
    Link to Paper Search Results by DOI
  22. Time Discounting and Hand-Sanitization Behavior: Evidence from Japan, SUSTAINABILITY, 15(8), 202304
    Link to Paper Search Results by DOI
  23. Who Became Victims of Financial Frauds during the COVID-19 Pandemic in Japan?, SUSTAINABILITY, 15(4), 202302
    Link to Paper Search Results by DOI
  24. Impact of Changing Socioeconomic Conditions on Family Caregiving Norms: Evidence from Japan, BEHAVIORAL SCIENCES, 12(12), 20221123
    Link to Paper Search Results by DOI
  25. A Longitudinal Study on Loneliness during the COVID-19 Pandemic in Japan, INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 19(18), 202209
    Link to Paper Search Results by DOI
  26. Consumers' Willingness to Pay for Tactile Impressions: A Study Using Smartphone Covers, IEEE ACCESS, 10, 85180-85188, 2022
    Link to Paper Search Results by DOI
  27. Does financial literacy influence preventive health check-up behavior in Japan? a cross-sectional study, BMC PUBLIC HEALTH, 22(1), 20220908
    Link to Paper Search Results by DOI
  28. Has Smartphone Use Influenced Loneliness during the COVID-19 Pandemic in Japan?, INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 19(17), 202209
    Link to Paper Search Results by DOI
  29. Does Financial Literacy Influence Preventive Health Check-up Behavior in Japan?, BMC Public Health,, 20220909
    Link to Paper Search Results by DOI
  30. A Longitudinal Study on Loneliness during the COVID-19 Pandemic in Japan, International Journal of Environmental Research and Public Health: Health Economics, 20220907
    Link to Paper Search Results by DOI
  31. Financial Literacy, Financial Education, and Smoking Behavior: Evidence From Japan, 20210115
    Link to Paper Search Results by DOI
  32. Has Smartphone Use Influenced Loneliness during the COVID-19 Pandemic in Japan?, International Journal of Environmental Research and Public Health: Health Economics, 20220824
    Link to Paper Search Results by DOI
  33. Consumers' Willingness to Pay for Tactile Impressions: A Study Using Smartphone Covers, IEEE Access, 10, 85180-85188, 20220810
    Link to Paper Search Results by DOI
  34. Hesitancy towards the Third Dose of COVID-19 Vaccine among the Younger Generation in Japan, International Journal of Environmental Research and Public Health, 20220608
    Link to Paper Search Results by DOI
  35. Who Became Lonely during the COVID-19 Pandemic? An Investigation of the Socioeconomic Aspects of Loneliness in Japan, International Journal of Environmental Research and Public Health, 20220520
    Link to Paper Search Results by DOI
  36. Financial Literacy, Financial Education, and Cancer Screening Behavior: Evidence from Japan, International Journal of Environmental Research and Public Health: Health Economics, 19(8), 20220407
    Link to Paper Search Results by DOI
  37. Satisfaction with the COVID-19 Economic Stimulus Policy: A Study of the Special Cash Payment Policy for Residents of Japan, Sustainability, 20220314
    Link to Paper Search Results by DOI
  38. Insurance literacy among older people in Japan: The role of socio-economic status, Journal of Consumer Affairs, 20220310
    Link to Paper Search Results by DOI
  39. Can Financial Literacy Explain Lack of Investment in Risky Assets in Japan?, Sustainability, 20211115
    Link to Paper Search Results by DOI
  40. COVID-19 Vaccine Hesitancy among the Younger Generation in Japan, International Journal of Environmental Research and Public Health, 20211107
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  41. Applied Research on Financial Literacy, JILI Journal, 216, 125-141, 20210915
  42. Financial Literacy and Exercise Behavior in the United States, Sustainability, 20210823
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  43. Financial Literacy and Alcohol Drinking Behavior: Evidence from Japan, Sustainability, 20210808
    Link to Paper Search Results by DOI
  44. Loneliness during the COVID-19 Pandemic: A Comparison between Older and Younger People, International Journal of Environmental Research and Public Health, 20210725
    Link to Paper Search Results by DOI
  45. Who Is Next? A Study on Victims of Financial Fraud in Japan, Frontiers in Psychology, 12, 20210702
    Link to Paper Search Results by DOI
  46. Family caregiving attitudes: Implications for post-pandemic eldercare in Japan, Gérontologie et société, 20210601
    Link to Paper Search Results by DOI
  47. How is emotion associated with driving speed? A study on taxi drivers in Japan, Transportation Research Part F: Traffic Psychology and Behaviour, 79(May), 205-216, 20210524
    Link to Paper Search Results by DOI
  48. Financial Literacy and Gambling Behavior in the United States, Journal of Gambling Studies, 20210505
    Link to Paper Search Results by DOI
  49. Willing or hesitant? A socio-economic study on the potential acceptance of COVID-19 vaccine in Japan, International Journal of Environmental Research and Public Health, 18(9), 4864, 20210502
    Link to Paper Search Results by DOI
  50. Do Financial Literacy and Financial Education Influence Smoking Behavior in the United States?, International Journal of Environmental Research and Public Health, 20210304
    Link to Paper Search Results by DOI
  51. The Economic Burden of Dementia: Evidence from a Survey of Households of People with Dementia and Their Caregivers, International Journal of Environmental Research and Public Health, 20210302
    Link to Paper Search Results by DOI
  52. Financial Literacy and Exercise Behavior: Evidence from Japan, Sustainability, 20210409
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  53. Access to Antenatal Care in Laos: Analysis Using National Level Survey, Asian Economic Journal, 34(3), 327-349, 202011
    Link to Paper Search Results by DOI
  54. Is Financial Literacy Associated with Investment in Financial Markets in the United States?, Sustainability, 12(18), 20200725
    Link to Paper Search Results by DOI
  55. Government's Stimulus Program to Boost Consumer Spending: A Case of Discount Shopping Coupon Scheme in Japan, Sustainability, 12(9), 20200511
    Link to Paper Search Results by DOI
  56. Financial Literacy in Japan: New Evidence Using Financial Knowledge, Behavior, and Attitude, Sustainability, 12(9), 20200502
    Link to Paper Search Results by DOI
  57. Financial Literacy and Gambling Behavior: Evidence from Japan, Journal of Gambling Studies, 20200318
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  58. The Rising Phenomenon of Financial Scams: Evidence from Japan, Journal of Financial Crime, forthcoming, 202002
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  59. Factors affecting knowledge about the adult guardianship and civil trust systems: evidence from Japan, Journal of Women & Aging, 20200212
    Link to Paper Search Results by DOI
  60. Emotional Status and Productivity: Evidence from the Special Economic Zone in Laos, Sustainability, 20200202
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  61. Cognitive decline reduces household spending among older people, Psychogeriatrics, forthcoming, 20200403
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  62. What Determines Financial Literacy in Japan?, Journal of Pension Economics & Finance, forthcoming, 20190208
    Link to Paper Search Results by DOI
  63. Can financial literacy reduce anxiety about life in old age?, Journal of Risk Research, 21(12), 1533-1550, 20181202
    Link to Paper Search Results by DOI
  64. Effects of Chinas One-Child Policy on Group Cooperation: Survey Evidence, Journal of the Asia Pacific Economy, 23(3), 327-339, 201812
    Link to Paper Search Results by DOI
  65. Financial literacy and anxiety about life in old age: Evidence from the USA, Review of Economics of the Household, 16(3), 859-878, 201809
    Link to Paper Search Results by DOI
  66. UXO clearance operation in Laos, SPIE 10628, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets, XXIII(106280J), 1-12, 201804
    Link to Paper Search Results by DOI
  67. Gender differences in the long-term care of older parents: Evidence from India, Journal of Family Studies, forthcoming, 20170209
    Link to Paper Search Results by DOI
  68. What makes anxious about life after the age of 65? Evidence from international survey research in Japan, the United States, China, and India, Review of Economics of the Household, 14(2), 443-461, 201606
    Link to Paper Search Results by DOI
  69. Can Concern for the Long-term Care of Elderly Parents Explain Son Preference at Birth in India?, Journal of Women and Aging, 30(1), forthcoming, 201604
    Link to Paper Search Results by DOI
  70. What makes anxious about life after the age of 65? Evidence from international survey research in Japan, the United States, China, and India, Nagoya-Chulalongkorn Joint Academic Workshop on Health Economics, 201507
  71. Can Financial Literacy Reduce Anxiety about Life in Old Age?, 201507
  72. The Role of Gender in Long-Term Care for Older Parents: Evidnce from India, Econ Research Center Discussion Paper, e14(15), 1-32, 201505
  73. Contact and Threat: Factors Affecting Views toward Increasing Immigrants in Japan, Politics and Policy, 43(1), 59-93, 201502
    Link to Paper Search Results by DOI
  74. Widow Discrimination and Family Care-Giving in India, Journal of Women and Aging, 27(1), 59-67, 201501
    Link to Paper Search Results by DOI
  75. Are Chinese Workers From the One-Child Policy Generation Selfish In a Group? Evidence From Worker Surveys In Six Major Cities, ISER Discussion Paper, 900, 1-11, 201404
  76. Market Competition and Supplier-Induced Demands: Analyzing Medical Expense from Micro-Data in Japan, Japanese Journal of Health Economics and Policy, 25(2), 114-125, 2014
  77. Chinese Business Ethics and Regional Differences: Evidence from Micro-data in Six Major Cities, Econ Research Center Discussion Paper, E14(8), 1-16, 2014
  78. Who will care for older people in China? Exploring the implications of gender imbalance at birth, Working with Older People, 18(2), 97-105, 2014
    Link to Paper Search Results by DOI
  79. Toward an age-friendly city: the constraints preventing the elderly's participation in community programs in Akita city, Working with Older People, 17(3), 101-108, 2013
    Link to Paper Search Results by DOI
  80. Ensuring the Service Quality of Long-Term Care Provided through Competitive Markets: The Experience of Care Workers' Training in Japan, ISER Discussion Paper, 201202
  81. Family Care-Giving and Religion: Evidence from Micro-Data in the United States, ISER Discussion Paper, 2012
  82. Managing the Long-Term Care Market: The Constraints of Service Quality Improvement, Japanese Journal of Health Economics and Policy, 21(E1), 247-264, 2010

Publications such as books

  1. 2022/08/31, Insights in Health Economics: 2021, Financial Literacy, Financial Education, and Smoking Behavior: Evidence From Japan, Frontiers, 2022, Scholarly Book, Contributor
  2. 2018/03, Human Services and Long-term Care: A Market ModelHuman Services and Long-term Care: A Market Model, Routledge, 2018, 3, Scholarly Book, Single work, English, Yoshihiko Kadoya, 9781138630932, 184
  3. 2016/02, Managing the Human Service Market: The Case of Long-Term Care in Japan, The University of Nagoya Press, 2016, 2, Scholarly Book, Single work
  4. 2019/06/21, Dementia and Intelligence(Ninchisho to joho), Keiso Publishing, 2019, Scholarly Book, Joint work
    Amazon URL

Awards

  1. 2017/06/25, Best Authorship Award, Public Policy Studies Association Japan
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  2. 2018, The President Award of Hiroshima University, Hiroshima University
  3. 2018/12, Distinguished Researcher, Hiroshima University, Hiroshima University

External Funds

Acceptance Results of Competitive Funds

  1. Research Funding, 2025, 2027
  2. Grant-in-Aid for Challenging Research (Exploratory), Understanding the Impact of Investor Cognitive Biases on Investment Behavior, 2024/06/28, 2027/03/31
  3. Grant-in-Aid for Scientific Research (B), 2023, 2026
  4. Grant-in-Aid for Early-Career Scientists, 2019, 2022
  5. RISTEX, 2015, 2018
  6. International Collaborative Research, Medical Market Design in Aged Society, 2016, 2017
  7. Young Scientist (B), Medical Market Design in Aged Society, 2015, 2019
  8. Publication of Scientific Research, The Economics of Long-Term Care Market, 2015, 2016
  9. Research Grant, Efficient Use of Medical Expense, 2015, 2016
  10. The Nitto Foundation, Research Grant, 2014, 2015
  11. Research Grant, Long-Term Care and Life Insurance, 2014, 2015
  12. Japanese Bankers Association (The Zengin Foundation), Medical Market Design to Respond to the Increasing Cost of Social Security, 2014, 2015
  13. Predoctoral Research Grant, Managing the Human Service Market, 2011, 2011
  14. Strategic Basic Research Programs（RISTEX), 2016/04/01, 2018/11/30
  15. Open Partnership Program, The economic impact and the technological development for the elimination of the une xploded ordance (UXO)in Laos, 2017, 2019
  16. Research Grant, 2016, 2019
  17. Research Grant, 2017, 2019
  18. Young Scientist, 2019/04, 2022/03
  19. RITEX, Scam Crime Prevention Research, 2019/04, 2021/03

Social Activities

History as Committee Members

  1. Member (Associate Member), 2020/10/01, 2026/09/30, Science Council of Japan (Economics)
  2. Public Policy Studies Association Japan Conference, 2020/08, 2021/06, Public Policy Studies Association Japan
  3. Life Management Research Group, 2019/05, 2021/03, Japan Institute of Life Insurance
  4. Advisory board member， University of Stirling, 2018/10

Organizing Academic Conferences, etc.

  1. Hiroshima-Chulalongkorn Research Workshop on Applied Economics, Coordinator, 2016/08, 2016/12
    Permalink

Other Social Contributions

  1. US News Best Global University Ranking, US News Best Global University Ranking, Clarivate, 2024/09/11, 2024/09/11, US News Best Global University Ranking, Advisor, Others, Researchesrs
  2. THE's 2024 Academic Reputation Survey, THE's 2024 Academic Reputation Survey, Times Higher Education, THE's 2024 Academic Reputation Survey, 2024/01/24, 2024/01/24, Times Higher Education, Informant, Investigation, General
  3. QS Academic Reputation Survey 2017, QS Academic Reputation Survey 2017, QS World University Ranking, QS Academic Reputation Survey 2017, 2017/02/23, 2017/03/10, QS World University Ranking, Informant, Investigation
  4. Preparing Indonesia to Expand Silver Economy, Preparing Indonesia to Expand Silver Economy, BAPPENAS, Government of Indonesia, Preparing Indonesia to Expand Silver Economy, 2020/11/06, 2020/11/06, BAPPENAS, Government of Indonesia, Panelist, Meeting or assembly
  5. Asia Research News, Study finds tactile impressions add product value, Asia Research News, Asia Research News, 2022/09/27, 2022/09/27, Asia Research News, Informant, Newspaper or magazine
  6. Surface texture design can increase sale value of products – study, Surface texture design can increase sale value of products – study, The Jerusalem Post, The Jerusalem Post, 2022/09/27, 2022/09/27, The Jerusalem Post, Interviewee, Newspaper or magazine
  7. Global Academic Reputation Survey, Global Academic Reputation Survey, Clarivate, Global Academic Reputation Survey, 2023/02/26, 2023/03/15, Global Academic Reputation Survey, Informant, Investigation
  8. THE's Interdisciplinary Research Survey, THE's Interdisciplinary Research Survey, Times Higher Education, THE's Interdisciplinary Research Survey, 2023/01/14, 2023/01/20, THE's Interdisciplinary Research Survey, Informant, Investigation
  9. Times Higher Education 2023 Global Academic Reputation Survey, 2023 Global Academic Reputation Survey, Times Higher Education, Times Higher Education 2023 Global Academic Reputation Survey, 2022/11/10, 2022/11/20, Times Higher Education, Informant, Investigation
  10. Institutional Academic Performance, Institutional Academic Performance, Clarivate, US News Best Global University Ranking, 2023/03/15, 2023/03/20, US News Best Global University Ranking, Others, Investigation
  11. QS World University Ranking, Evaluator, QS World University Ranking, QS World University Ranking, 2022/12/26, 2023/02/22, QS World University Ranking, Informant, Investigation
  12. WHO West Pacific Office, LTC system introduction in Asia Pacific Region, World Health Organization (WHO), 2021/03/05, 2021/03/05, Lecturer, Seminar or workshop
  13. Media information is available with the following website., Media information is available with the following website., Others, Others
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