Brian Hedden
Brian Hedden is an MIT philosopher who studies rationality, algorithmic fairness and the ethics of AI. He earned degrees at Princeton and MIT, then held posts at Oxford, the University of Sydney and the Australian National University. His 2015 book Reasons without Persons explored how evidence should guide decisions, and his 2021 paper on statistical criteria of algorithmic fairness received the American Philosophical Association’s 2024 AI2050 early career prize. In 2026, he coauthored research with Manish Raghavan on the effects of using shared algorithms to make hiring decisions. Since January 2026, he is co-associate dean of MIT’s Social and Ethical Responsibilities of Computing initiative, alongside his shared professorship and work in the Laboratory for Information and Decision Systems.
- Works
- 49
- Citations
- 1,305
- h-index
- 18
- Badges
Publication numbers from OpenAlex, as of 27 October 2026.
Timeline
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2006–2012
Princeton and MIT degrees
Raised in Virginia, he earns his BA at Princeton University in 2006 and completes his PhD at MIT in 2012. After Princeton, he spends a year working for an education nonprofit in Nicaragua. At MIT’s Department of Linguistics and Philosophy, Caspar Hare, Robert Stalnaker and Roger White advise his doctoral work on rationality and decision-making.
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By 2015
From Oxford to Sydney
After his doctorate, he works as a junior research fellow at Oxford University. In 2015, he takes his first faculty position at the University of Sydney.
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2015
Reasons without Persons
He publishes Reasons without Persons: Rationality, Identity, and Time with Oxford University Press in 2015. The book argues that a person’s evidence determines what rationality requires of them.
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2021
Associate professor at ANU
In early 2021, he takes up an associate professorship in philosophy at the Australian National University, moving from his senior lectureship in philosophy at the University of Sydney.
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March 2021
Statistical criteria of fairness
In March 2021, he publishes “On Statistical Criteria of Algorithmic Fairness” in Philosophy and Public Affairs.
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2024
An APA AI2050 prize
He receives the American Philosophical Association’s 2024 AI2050 Prize for Early Career Researchers for “On Statistical Criteria of Algorithmic Fairness.”
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2025
Returning to MIT
In 2025, he joins MIT as a professor in the Department of Linguistics and Philosophy, with a Schwarzman College of Computing shared appointment in the Department of Electrical Engineering and Computer Science. He is also a principal investigator in the Laboratory for Information and Decision Systems, and his research includes the ethics of AI.
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2026
SERC and algorithmic monoculture
In January 2026, he becomes co-associate dean of MIT’s Social and Ethical Responsibilities of Computing initiative, joining Nikos Trichakis in directing its research, teaching and engagement. With Manish Raghavan, he coauthors “Algorithmic Monoculture and its Critics” in 2026; their hiring research shows how a shared algorithm can limit exploration and how combining algorithms can reduce this problem. He also holds his shared professorship in Linguistics and Philosophy and EECS and his principal investigator role in the Laboratory for Information and Decision Systems.
Career
- Since 2026Massachusetts Institute of TechnologyCo-associate dean of the Social and Ethical Responsibilities of Computing initiative
- Since 2025Massachusetts Institute of TechnologyProfessor in Linguistics and Philosophy, with a shared appointment in Electrical Engineering and Computer Science
- Until 2021University of SydneySenior Lecturer in Philosophy
- From 2021Australian National UniversityAssociate Professor in Philosophy
- Until 2015University of OxfordJunior Research Fellow
Education
Sources and credits
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- Meet the 2025 tenured professors in the School of Humanities, Arts, and Social Sciences
- Using reason, again and again
- Home | Brian Hedden
- Reasons Without Persons: Rationality, Identity, and Time - Brian Hedden - Google Books
- Hedden from Sydney to ANU
- On statistical criteria of algorithmic fairness - The Australian National University
- APA announces Fall 2024 prize winners
- Brian Hedden named co-associate dean of Social and Ethical Responsibilities of Computing
- The effects of an “algorithmic monoculture” depend on the details

