Research Papers of Hitoshi Yamamoto

Interest

Evolution of Cooperation, Social Dilemma, Social Simulation, Agent-Based Modeling, Social Infomatics, Internet Sociology

IDs

ResearchGate ORCID Google Scholar

Educational Biography

Mar. 1995 B. Eng., University of Electro-Communications
Mar. 1997 M. Eng., University of Electro-Communications
Sep. 2003 Ph. D., University of Electro-Communications

Career

Apr. 1997

Mar. 2000
The Japan Research Institute, Limited
Apr. 2000

Sep. 2003
Research Associate, Faculty of Engineering,
Tokyo University of Science
Oct. 2003

Mar. 2005
Research Associate, Graduate School of Information Systems,
University of Electro-Communications
Apr. 2005

Mar. 2009
Lecturer, Faculty of Business Administration,
Rissho University
Apr. 2009

Mar. 2014
Associate Professor, Faculty of Business Administration,
Rissho University
Apr. 2014

now
Professor, Faculty of Business Administration,
Rissho University

Articles (Refereed Papers)


Umetani, R., Yamamoto, H., & Akiyama, E. (2025) . Partner selection biases induced by resource inequality. Social Sciences & Humanities Open, 12, 101907. https://doi.org/10.1016/j.ssaho.2025.101907

Yamamoto, H., Okada, I., & Suzuki, T. (2025). Gradual reputation dynamics evolve and sustain cooperation in indirect reciprocity. PLoS One, 20(8), e0329742. https://doi.org/10.1371/journal.pone.0329742

Yamamoto, H., Okada, I., & Suzuki, T. (2025). Tolerant integrated reciprocity sustains cooperation in a noisy environment. Scientific Reports, 15(1), 28912. https://doi.org/10.1038/s41598-025-14538-3

Yamamoto, H., Suzuki, T. (2025). Exploring condition in which people accept AI over human judgements on justified defection. Scientific Reports 15, 3339. https://doi.org/10.1038/s41598-025-87170-w

Yamamoto, H., Okada, I., Sasaki, T., & Uchida, S. (2024). Clarifying social norms which have robustness against reputation costs and defector invasion in indirect reciprocity. Scientific Reports, 14, 25073. https://doi.org/10.1038/s41598-024-76168-5

Yamamoto, H., & Goto, A. (2024). Behavioural strategies in simultaneous and alternating prisoner's dilemma games with/without voluntary participation. Scientific Reports, 14, 21890. https://doi.org/10.1038/s41598-024-73353-4

Uchida, S., Sasaki, T., Yamamoto, H., & Okada, I. (2024). Evolution of "Pay-It-Forward" in the Presence of the Temptation to Free-Ride. Games, 15(3), 16. https://doi.org/10.3390/g15030016

Sasaki, T., Uchida, S., Okada, I., & Yamamoto, H. (2024). The Evolution of Cooperation and Diversity under Integrated Indirect Reciprocity. Games, 15(2), 15. https://doi.org/10.3390/g15020015

Yamamoto, H., Suzuki, T., Ogawa, Y. & Umetani, R. (2023). The effects of psychological attitudes on voluntary cooperation against COVID-19: an analysis using a social dilemma framework. Journal of Socio-Informatics, 16(1) pp.17-31. https://doi.org/10.14836/jsi.16.1_17

Umetani, R., Yamamoto, H., Goto, A., Okada, I., & Akiyama, E. (2023). Individuals reciprocate negative actions revealing negative upstream reciprocity. PLoS One, 18(7), e0288019. https://doi.org/10.1371/journal.pone.0288019

Suzuki, T., Yamamoto, H., Ogawa, and Umetani, R. (2023). Effects of media on preventive behaviour during the COVID-19 pandemic. Humanities and social sciences communications, 10, 58. https://doi.org/10.1057/s41599-023-01554-9

Yamamoto, H., Okada, I., Uchida, S., & Sasaki, T. (2022). Exploring norms indispensable for both emergence and maintenance of cooperation in indirect reciprocity. Frontiers in Physics, 10(September), 1–9. https://doi.org/10.3389/fphy.2022.1019422

Hackel, J., Yamamoto, H., Okada, I., Goto, A., & Taudes, A. (2021). Asymmetric effects of social and economic incentives on cooperation in real effort based public goods games. PLoS One, 16(4), e0249217. https://doi.org/10.1371/journal.pone.0249217

Okada, I., Yamamoto, H., Akiyama, E., & Toriumi, F. (2021). Cooperation in spatial public good games depends on the locality effects of game, adaptation, and punishment. Scientific Reports, 11(1), 7642. https://doi.org/10.1038/s41598-021-86668-3

Yamamoto, H., Suzuki, T., & Umetani, R. (2020). Justified defection is neither justified nor unjustified in indirect reciprocity. PLoS One, 15(6), e0235137. https://doi.org/10.1371/journal.pone.0235137

Toriumi, F., Yamamoto, H., & Okada, I. (2020). A belief in rewards accelerates cooperation on consumer-generated media. Journal of Computational Social Science, Vol.3, pp.19-31. https://doi.org/10.1007/s42001-019-00049-5

Okada, I., Yamamoto, H., & Uchida, S. (2020). Hybrid Assessment Scheme Based on the Stern-Judging Rule for Maintaining Cooperation under Indirect Reciprocity. Games, 11(1), 13. https://doi.org/10.3390/g11010013

Yamamoto, H., Okada, I., Taguchi, T., & Muto, M. (2019). Effect of voluntary participation on an alternating and a simultaneous prisoner's dilemma. Physical Review E, 100(3), 032304. https://doi.org/10.1103/PhysRevE.100.032304

Kobayashi, T., Ogawa, Y., Suzuki, T., & Yamamoto, H. (2019). News audience fragmentation in the Japanese Twittersphere. Asian Journal of Communication, 29(3), 274–290. https://doi.org/10.1080/01292986.2018.1458326

Uchida, S., Yamamoto, H., Okada, I., & Sasaki, T. (2019). Evolution of Cooperation with Peer Punishment under Prospect Theory. Games, 10(1), 11. https://doi.org/10.3390/g10010011

Yamamoto, H., & Suzuki, T. (2018). Effects of beliefs about sanctions on promoting cooperation in a public goods game. Palgrave Communications, 4(1), 148. https://doi.org/10.1057/s41599-018-0203-8

Okada, I., Yamamoto, H., Sato, Y., Uchida, S., & Sasaki, T. (2018). Experimental evidence of selective inattention in reputation-based cooperation. Scientific Reports, 8(1), 14813. https://doi.org/10.1038/s41598-018-33147-x

Uchida, S., Yamamoto, H., Okada, I. & Sasaki, T. (2018). A Theoretical Approach to Norm Ecosystems : Two Adaptive Architectures of Indirect Reciprocity Show Different Paths to the Evolution of Cooperation. Frontiers in Physics, 6:14. https://doi.org/10.3389/fphy.2018.00014

Yamamoto, H., Okada, I., Uchida, S., & Sasaki, T. (2017). A norm knockout method on indirect reciprocity to reveal indispensable norms. Scientific Reports, 7, 44146. https://doi.org/10.1038/srep44146

Sasaki, T., Yamamoto, H., Okada, I., & Uchida, S. (2017). The Evolution of Reputation-Based Cooperation in Regular Networks. Games, 8(1), 8. http://doi.org/10.3390/g8010008

Toriumi, F., Yamamoto, H., & Okada, I. (2016). Exploring an Effective Incentive System on a Groupware. Journal of Artificial Societies and Social Simulation, 19(4). http://doi.org/10.18564/jasss.3166

Yamamoto, H., & Okada, I. (2016). How to keep punishment to maintain cooperation: Introducing social vaccine. Physica A, 443, 526-536. http://doi.org/10.1016/j.physa.2015.08.053

Okada, I., Yamamoto, H., Toriumi, F., & Sasaki, T. (2015). The Effect of Incentives and Meta-incentives on the Evolution of Cooperation. PLOS Computational Biology, 11(5), e1004232. doi:10.1371/journal.pcbi.1004232

Miyata, K., Yamamoto, H., & Ogawa, Y. (2015). What Affects the Spiral of Silence and the Hard Core on Twitter? An Analysis of the Nuclear Power Issue in Japan. American Behavioral Scientist, vol.59,No.9,pp.1129-1141, doi:10.1177/0002764215580618

Yamamoto, H., Okada, I., & Ogawa, Y. (2014). Analysis of a Public Good Game Permitted New Entries : a Role of Defectors to Maintain Cooperation. Journal of Advanced Computational Intelligence and Intelligent Informatics, 18(4), 624-631.

Toriumi, F., Yamamoto, H., & Okada, I. (2014). Influence of Payoff in Meta-Rewards Game. Journal of Advanced Computational Intelligence and Intelligent Informatics, 18(4), 616-623.

Isamu Okada, Hitoshi Yamamoto,"Mathematical description and analysis of adaptive risk choice behavior", ACM Transactions on Intelligent Systems and Technology, 14(1), 17:1--17:21,2013(1)

Isamu Okada and Hitoshi Yamamoto, "Effects of Information Diffusion in OnlineWord-of-Mouth Communication Among Consumers", Journal of Advanced Computational Intelligence and Intelligent Informatics, Vol.15 No.2, pp.197-203,2011(3)

Yamamoto, H., K., Ishida and T., Ohta,"Modeling Reputation Management System on Online C2C Market", Computational & Mathematical Organization Theory, Vol. 10,No. 2, pp.165-178,2004.