I am a microeconomist, especially interested in axiomatic decision theory and decision making under uncertainty. My current position is as an Ambizione Fellow at the Faculty of Business and Economics at the University of Basel, Switzerland.
You can find my detailed CV here.
Homepage at the University of Basel
Researchgate profile
ORCID profile
Email: lorenz.hartmann(at)unibas.ch
Savage's P3 is Redundant, Econometrica, January 2020. [preprint] (There is an Erratum, this being joint work with Gabriel Frahm, which corrects two mistakes. These mistakes are irrelevant for the result)
Strength of preference over complementary pairs axiomatizes alpha-MEU preferences, Journal of Economic Theory, October 2023. [preprint]
The Sure-Thing Principle, with Jean Baccelli, Journal of Mathematical Economics, December 2023. [preprint]
Some Notes on Savage's Representation Theorem, with Gabriel Frahm, Theory and Decision, August 2024. [preprint]
Binary Diversification characterizes Exact Capacities, with Florian Kauffeldt, Operations Research, March 2025. [preprint]
Obvious Representations, with Jean Baccelli (revise and resubmit at the Journal of Mathematical Economics).
Location Invariance and Games with Ambiguity, with David Kelsey (under review).
Correlation uncertainty: a decision-theoretic approach, with Gerrit Bauch.
At the University of Basel I teach Decision Theory as well as Advanced Microeconomics (the latter jointly with Georg Nöldeke and Cedric Wasser). At the University of Freiburg I conducted a seminar on Decision Making under Uncertainty (2019, jointly with Eva Lütkebohmert-Holtz). At the Central University of Finance and Economics in Beijing I gave a block lecture on decision theory (2019).
I have been a TA for Advanced Microeconomics, Game Theory, Decision Theory, General Equilibrium Theory, Banking Regulation, Introduction to Economics, Econometrics, Financial Markets and Decisions, Analysis (mathematics department), and Stochastics (mathematics department).