Philip Kreager is a historian of population thought and analysis, and an anthropological demographer specializing in Indonesia. He is Senior Research Fellow in Human Sciences, Somerville College; Director, Fertility and Reproduction Studies Group (FRSG); Lecturer and Tutor in Population at the Institute of Human Sciences; and Research Associate in the Department of Sociology, Oxford University. He is currently co-investigator in the research project ‘Care Networks in Later Life: A Comparative Study of Indonesia, 2020-2023’, under the Economic and Social Research Council, Southampton University. He is also co-investigator in the research project 'Understanding Social, Economic and Health Vulnerabilities in Indonesia 2017-2023' under Australian Research Council Discovery Grant DP170101044. This project continues two longitudinal studies under his direction: the study of malaria treatment-seeking behaviour in Alor, in the Eastern Archipelago of Indonesia (2013-2015) (funded by the Wellcome Trust - ISSF grant scheme (Oxford University)); and Ageing in Indonesia, a multi-site study of ageing in three Indonesian communities 1999-2007, supported by the Wellcome Trust.  This work has led to continuing collaboration with the University of Indonesia, where he is Honorary Professor. Dr Kreager has a primary interest in the history of population thought, particularly as a common ground of theory and analysis linking the biological and social sciences, and in this connection was senior editor, Population in the Human Sciences (Oxford University Press, 2015). His Directorship of FRSG has involved him in planning courses for the Medical School on cross-cultural issues of reproductive health and IVF, and of workshops on AIDS, ecological and social implications of genomics, the diversity of fertility declines, and related health topics.