Koki Shimizu is an Assistant Professor in the Faculty of Social Studies, Department of Sociology at Doshisha University, a position he has held since April 2025. He previously served as Assistant Professor in the Faculty of Humanities and Human Sciences at Hokkaido University from April 2021 to March 2025. Earlier roles include Visiting Researcher at the University of Cologne from October 2018 to February 2019 and Research Fellow at Aoyama Community Lab, Aoyama Gakuin University from April 2015 to March 2016. Shimizu earned a master’s degree from Aoyama Gakuin University in 2015 and a Ph.D. in Human Sciences from Hokkaido University in December 2020.
His research interests center on sociology, with a focus on survey research, values, religiosity, and subjective well-being. Shimizu has authored or co-authored numerous publications, including the 2026 paper “Ambiguous Boundaries of Religious Belief, Behavior, and Belonging in Japan: A Descriptive Analysis of Plural and Cultural Religiosity” in the Journal for the Scientific Study of Religion (with Yoshihide Sakurai). Other works examine topics such as authoritarian tendencies, measurement equivalence in cross-national research, and the effects of religious belonging on happiness in Japan. He has contributed chapters to books on well-being and modernization in Asia. Shimizu serves on editorial boards for the Japan-China Sociological Society and the Hokkaido Sociological Association and was Treasurer of the East Asian Society for the Scientific Study of Religion from 2021 to 2025. He is a member of several professional associations, including the International Sociological Association and the Japanese Association for Religious Studies.