Ethan Fosse

Ethan Fosse
Assistant Professor
Telephone number
Building HL 472

Ethan Fosse received his Ph.D. in sociology from Harvard University. Prior to coming to Toronto, he worked as a Postdoctoral Research Associate at Princeton University in the Department of Sociology and Department of Politics, where he designed and implemented a series of open-source statistical programming workshops. He currently teaches courses on quantitative methods, social change, and computational social science.

Professor Fosse’s research focuses on using novel quantitative methods to understand social change. He is currently working on three interrelated projects: first, creating a new set of techniques for identifying age-period-cohort effects, with wide application in sociology and related fields; second, explaining social and cultural change, focusing on the economic, religious, and political views of recent birth cohorts; finally, developing and applying high-dimensional sparse regression models to quantitatively analyze textual data. In addition, building off his research on age-period-cohort effects, he has recently begun a project analyzing the individual-level consequences of social mobility. His research has been published in a number of volumes and journals, with recent work in DemographySociological Science, and the Annual Review of Sociology. He is also the co-editor of a widely-reviewed book on culture and poverty published by Harvard University Press.


Fosse, Ethan and Christopher Winship. Forthcoming. “Bounding Analyses of Age-Period-Cohort Effects.” Demography.

Fosse, Ethan and Christopher Winship. Forthcoming. “Analyzing Age-Period-Cohort Data: Critiques and New Directions.” Annual Review of Sociology 45.

Fosse, Ethan and Christopher Winship. 2018. “Moore-Penrose Estimators of Age-Period-Cohort Effects: Their Interrelationship and Properties.” Sociological Science 5: 304-34.