Casey Breen

Casey Breen

Postdoctoral Scholar

UC Berkeley


I am a Senior Postdoctoral Fellow in Computational Social Science at the University of Oxford. I completed my Ph.D. in Demography at UC Berkeley mentored by Dennis Feehan and Joshua R. Goldstein.

My research develops and applies computational and demographic methods to examine questions in population health. In one line of research, I investigate mortality disparities and dynamics in the United States using large-scale administrative data. In a second line of research, I develop and apply network-based methods to sample hard-to-reach populations and estimate mortality rates in humanitarian emergencies.

View my CV.


  • Social Networks
  • Health and Mortality Disparities
  • Computational Social Science


  • PhD, Demography, 2023

    UC Berkeley

  • MA, Biostatistics, 2021

    UC Berkeley

  • BA, Economics, 2016

    Pomona College

Recent News

All news»

Jul. 2023: I am delighted to have joined the Leverhulme Centre for Demographic Science at the University of Oxford as a Senior Postdoctoral Scholar in Computational Social Science. (Mentor: Ridhi Kashyap)

Feb. 2023: New publication — Mortality Modeling of Partially Observed Cohorts Using Administrative Death Records

Apr. 2023: Talk at PAA 2023 in the session “Flash: Socioeconomic Inequalities in Mortality.” [Slides]

Apr. 2023: Talk at PAA 2023 in the session “Flash: Open Science in Demography and Population Studies” [Slides]

Feb. 2023: New publication — Late‑Life Changes in Ethnoracial Self‑identification: Evidence from Social Security Administrative Data