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Radim Chvaja, Ph.D.

Radim Chvaja is a member of ERUNI Open Research Ostrava and an external member of the Department of Social Science Policy at the European Research University. He holds a PhD in Religious Studies from Masaryk University and is currently a postdoc at the University of Otago (New Zealand), where he is studying the relationship between religion, reproduction and demography as part of an international project. His work, however, is mainly concerned with the question of fostering intra-group cooperation and trust and the role that religious beliefs and rituals play in this, which places his research at the intersection of behavioural economics, social psychology, anthropology and evolutionary biology. He primarily uses experiments in the laboratory and in the field, complemented by observational and longitudinal study methods, to answer his research questions. He has conducted his field research on the island of Mauritius and in northern Spain, for example, and as a PhD student at Masaryk University in Brno he has been involved in teaching and several internal research and education projects. During his studies he also received an internal student grant from Masaryk University in Brno and a student grant from the European Human Behaviour and Evolution Association. He has published in reputed journals in the top quartile.



Masaryk University, Faculty of Arts, Study of Religions, 2023 

Master’s Degree 

Masaryk University, Faculty of Arts, Philosophy, 2018  

Bachelor’s Degree 

Masaryk University, Faculty of Arts, Philosophy, 2016  


2022–present, University of Otago, Postdoc fellow  

2021–present, ERUNI, Researcher 

Publications (last 5 years, selected)

CHVAJA, R., CHINCHILLA, J., GOMÉZ, Á., & LANG, M. Religious costly signal induces more trustworthiness than secular costly signal: A study of pilgrimage to Santiago de Compostela. European Journal of Social Psychology, 2023, 53(6), 1294 – 1308. ISSN0046-2772.

LANG, M., CHVAJA, R., PURZYCKI, B. G., VÁCLAVÍK, D., & STANĚK, R. Advertising cooperative phenotype through costly signals facilitates collective action. Royal Society Open Science, 2022, 9(202202), 1–19. ISSN: 2054-5703.

CHVAJA, R., HORSKÝ, J., LANG, M., & KUNDT, R. Positive association between ritual performance and perceived objectivity of moral norms. International Journal for the Psychology of Religion, 2022, 33(2), 115-135. ISSN 1050-8619.

CHVAJA, R., KUNDT, R., & LANG, M. The effects of synchrony on group moral hypocrisy. Frontiers in Psychology, 2020, 11(544589). ISSN 1664-1078.

CHVAJA, R. & ŘEZNIČEK, D. An Integrative Framework of Commitment Displays in Religious Systems. Human Ethology, 2019, 34, 41-52. ISSN 2224-4476.


Family, Books, Skateboarding, Mountains