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Florian Brandl

University of Bonn · flori-remove-an.brandl@uni-bonn.de

I am a professor at the Institute for Microeconomics and the Hausdorff Center for Mathematics at the University of Bonn. Previously, I was a postdoctoral research scholar at the Economics Departments of Princeton University and Stanford University. I obtained a Ph.D. degree in mathematics from the Technical University of Munich under the supervision of Felix Brandt. My research interests cover various areas of microeconomic theory including game theory, fair division, and dynamic decision problems.

In the summer of 2026, we are hosting a Trimester Program on Advances in Mechanism Design in Bonn. We welcome applications from PhD students, post-docs, and young assistant professors. Also check out the COMSOC Video Seminar, which I am co-organizing.



News

I will give an invited talk at the Symposium 75 years of Nash equilibrium.
Updated preprint available: Patience Ensures Fairness.
New preprint available: The Social Learning Barrier.
I will give an invited talk at the Workshop Random Dynamical Systems, with applications in biology.
New preprint available: Disinformation in the Wald Model.
New preprint available: Patience Ensures Fairness.
I will give an invited talk at the Vienna Workshop on Social Choice and Fairness.
Lecture notes available: Introduction to Decision Theory.
New preprint available: A Robust Characterization of Nash Equilibrium.
I will serve as a program committee member for COMSOC 2023.
I will serve as an area chair for EC 2023.
Our paper Approval Voting under Dichotomous Preferences: A Catalogue of Characterizations is now published at JET.
New preprint available: A Natural Adaptive Process for Collective Decision-Making.
Our paper "Funding Public Projects: A Case for the Nash Product Rule" received the Best Student Paper Award at WINE 2021!
Upcoming presentations: Oxford Workshop on Global Priorities Research, D-TEA 2021, New Directions in Social Choice, and Hausdorff Center for Mathematics Symposium.
I have joined the Hausdorff Center for Mathematics and the Department of Economics at the University of Bonn!
New preprints available: Belief-Averaging and Relative Utilitarianism: Savage Meets Arrow and Efficient, Fair, and Incentive-Compatible Healthcare Rationing.
Upcoming presentations: Virtual Conference on Social Choice Theory and Applications, SET: Seminars in Economic Theory, and Online Social Choice Seminar Series.
A preprint of a new paper with Haris Aziz on probabilistic allocation under constraints is now available.
A new preprint of our paper Funding Public Projects: A Case for the Nash Product Rule is now available.
I joined the Economics Department at Princeton University as a Postdoctoral Research Fellow.
Our paper Arrovian Aggregation of Convex Preferences has been accepted for publication in Econometrica.
A preprint of our paper Simple Characterizations of Approval Voting is now available.
Our paper Strategic Abstention based on Preference Extensions: Positive Results and Computer-Generated Impossibilities has been accepted for publication in JAIR.
A preprint of our paper Donor Coordination: Collective Distribution of Individual Contributions is now available.
Felix Brandt will present our paper Consistent Probabilistic Social Choice in the Highlights Beyond EC session at EC 2019.
I moved to Stanford University as a visiting postdoctoral scholar.

Publications

Working Papers

The Social Learning Barrier
Working paper (April 2025)
2025
Patience Ensures Fairness
With A. Mackenzie
Working paper (February 2025)
2025
Disinformation in the Wald Model
With X. Shi
Working paper (July 2024)
2024

Journal Articles

Efficient and Fair Healthcare Rationing
With H. Aziz
Journal of Artificial Intelligence Research, 80, 2024
2024
An Axiomatic Characterization of Nash Equilibrium
With F. Brandt
Theoretical Economics, 19(4):1473–1504, 2024
2024
A Natural Adaptive Process for Collective Decision-Making
With F. Brandt
Theoretical Economics, 19(2):667-703, 2024
2024
Approval Voting under Dichotomous Preferences: A Catalogue of Characterizations
With D. Peters
Journal of Economic Theory, 205, 2022
2022
The Vigilant Eating Rule: A General Approach for Probabilistic Economic Design with Constraints
With H. Aziz
Games and Economic Behavior, 135:168-187, 2022
2022
Funding Public Projects: A Case for the Nash Product Rule
With F. Brandt, M. Greger, D. Peters, C. Stricker, and W. Suksompong
Journal of Mathematical Economics, 99, 2022
2022
An Analytical and Experimental Comparison of Maximal Lottery Schemes
With F. Brandt and C. Stricker
Social Choice and Welfare, 58(1):5--38, 2022
2022
Belief-Averaging and Relative Utilitarianism
Journal of Economic Theory, 198, 2021
2021
Arrovian Aggregation of Convex Preferences
With F. Brandt
Econometrica, 88(2):799-844, 2020
2020
An Axiomatic Characterization of the Borda Mean Rule
With D. Peters
Social Choice and Welfare, 52(4):685–707, 2019
2019
Fractional Hedonic Games
With H. Aziz, F. Brandt, P. Harrenstein, M. Olsen, and D. Peters
ACM Transactions on Economics and Computation, 7(2), 2019
2019
Justifying Optimal Play via Consistency
With F. Brandt
Theoretical Economics, 14:1185-1201, 2019
2019
Strategic Abstention based on Preference Extensions: Positive Results and Computer-Generated Impossibilities
With F. Brandt, C. Geist, and J. Hofbauer
Journal of Artificial Intelligence Research, 66:1031-1056, 2019
2019
Two Problems in Max-size Popular Matchings
With T. Kavitha
Algorithmica, 81(7):2738–2764, 2019
2019
Welfare Maximization Entices Participation
With F. Brandt and J. Hofbauer
Games and Economic Behavior, 14:308–314, 2019
2019
On the Tradeoff between Efficiency and Strategyproofness
With H. Aziz, F. Brandt, and M. Brill
Games and Economic Behavior, 110:1–18, 2018
2018
Proving the Incompatibility of Efficiency and Strategyproofness via SMT Solving
With F. Brandt, M. Eberl, and C. Geist
Journal of the ACM, 65(2), 2018
2018
The Distribution of Optimal Strategies in Symmetric Zero-sum Games
Games and Economic Behavior, 104:674–680, 2017
2017
Consistent Probabilistic Social Choice
With F. Brandt and H. Seedig
Econometrica, 84(5):1839–1880, 2016
2016
The Impossibility of Extending Random Dictatorship to Weak Preferences
With F. Brandt and W. Suksompong
Economics Letters, 141:44–47, 2016
2016
Universal Pareto Dominance and Welfare for Plausible Utility Functions
With H. Aziz and F. Brandt
Journal of Mathematical Economics, 60:123–133, 2015
2015

Conference Articles

Distribution Rules Under Dichotomous Preferences: Two Out of Three Ain’t Bad
With F. Brandt and D. Peters and C. Stricker
In Proceedings of the 22nd ACM Conference on Economics and Computation (ACM-EC), pages 158–179. ACM Press, 2021
2021
Efficient, Fair, and Incentive-Compatible Healthcare Rationing
With H. Aziz
In Proceedings of the 22nd ACM Conference on Economics and Computation (ACM-EC), pages 103–104. ACM Press, 2021
2021
An Analytical and Experimental Comparison of Maximal Lottery Schemes
With F. Brandt and C. Stricker
In Proceedings of the 27th International Joint Conference on Artificial Intelligence (IJCAI), pages 114–120. IJCAI, 2018
2018
Popular Matchings with Multiple Partners
With T. Kavitha
In Proceedings of the 37th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS), Leibniz International Proceedings in Informatics (LIPIcs), pages 19:1–19:15. LZI, 2018
2018
Random Assignment with Optional Participation
With F. Brandt and J. Hofbauer
In Proceedings of the 16th International Conference on Autonomous Agents and Multiagent Systems (AAMAS), pages 326–334. IFAAMAS, 2017
2017
Proving the Incompatibility of Efficiency and Strategyproofness via SMT Solving
With F. Brandt and C. Geist
In Proceedings of the 25th International Joint Conference on Artificial Intelligence (IJCAI), pages 116–122. AAAI Press, 2016
2016
Fractional Hedonic Games: Individual and Group Stability
With F. Brandt and M. Strobel
In Proceedings of the 14th International Conference on Autonomous Agents and Multiagent Systems (AAMAS), pages 1219–1227. IFAAMAS, 2015
2015
Incentives for Participation and Abstention in Probabilistic Social Choice
With F. Brandt and J. Hofbauer
In Proceedings of the 14th International Conference on Autonomous Agents and Multiagent Systems (AAMAS), pages 1411–1419. IFAAMAS, 2015
2015
Strategic Abstention based on Preference Extensions: Positive Results and Computer-Generated Impossibilities
With F. Brandt, C. Geist, and J, Hofbauer
In Proceedings of the 24th International Joint Conference on Artificial Intelligence (IJCAI), pages 18–24. AAAI Press, 2015
2015
On the Incompatibility of Efficiency and Strategyproofness in Randomized Social Choice
With H. Aziz and F. Brandt
In Proceedings of the 28th AAAI Conference on Artificial Intelligence (AAAI), pages 545–551. AAAI Press, 2014
2014
Universal Pareto Dominance and Welfare for Plausible Utility Functions
With H. Aziz and F. Brandt
In Proceedings of the 15th ACM Conference on Economics and Computation (ACM-EC), pages 331–332. ACM Press, 2014
2014
Existence of Stability in Hedonic Coalition Formation Games
With H. Aziz
In Proceedings of the 11th International Conference on Autonomous Agents and Multiagent Systems (AAMAS), pages 763–770. IFAAMAS, 2012
2012

Thesis

Zero-Sum Games in Social Choice and Game Theory
PhD thesis, Technische Universität München, 2018
2018
Efficiency and Incentives in Randomized Social Choice
Master's thesis, Technische Universität München, 2013
2013

Teaching

Introduction to Decision Theory
Lecture notes (July 2024)
2024

Positions

Argelander Professor (associate professor with tenure)
University of Bonn, Department of Economics
Since 2021
Bonn Junior Fellow
University of Bonn, Hausdorff Center for Mathematics
Since 2021
Research Affiliate
University of Oxford, Global Priorities Institute
Since 2021
Postdoctoral Research Scholar
Princeton University, Department of Economics (with Wolfgang Pesendorfer)
2020-2021
Visiting Postdoctoral Scholar
Stanford University, Department of Economics (with Fuhito Kojima)
2019-2020
Graduate Student
Technical University of Munich, Department of Mathematics (with Felix Brandt)
2013-2018

Education

Doctoral degree in Mathematics (summa cum laude)
Technical University of Munich
2018
Master's degree in Mathematics
Technical University of Munich
2013
Bachelor's degree in Mathematics
Technical University of Munich
2011

Professional Activities

Referring Journals
Referring Conferences
Program Committee Memberships