315 citations · 490 across the 16 of their papers we have counts for
17 papers
LLMs struggle to simulate human belief updates in controlled environments
Sebastian Pohl, Harsh Mehta, Pranav Mambayil +4
LLMs are increasingly deployed as proxies for human study participants in social science experiments, yet the fidelity of this practice has rarely been tested directly. We test whe…
Characterisation of reactive Nash equilibria in repeated additive games
Franziska Lesigang, Christian Hilbe, Nikoleta E. Glynatsi
In this paper, we study reactive strategies in repeated additive games between two players with finitely many actions. Reactive strategies condition only on the opponent's previous…
Strategies of cooperation and defection in five large language models
Saptarshi Pal, Abhishek Mallela, Christian Hilbe +5
Large language models (LLMs) are increasingly deployed to support human decision-making. This use of LLMs has concerning implications, especially when their prescriptions affect th…
Exact conditions for evolutionary stability in indirect reciprocity under noise
Nikoleta E. Glynatsi, Christian Hilbe, Yohsuke Murase
Indirect reciprocity is a key mechanism for large-scale cooperation. This mechanism captures the insight that in part, people help others to build and maintain a good reputation. T…
Evolution of noisy learning in games
Marta C. Couto, Fernando P. Santos, Christian Hilbe
People make strategic decisions many times a day - during negotiations, when coordinating actions with others, or when choosing partners for cooperation. The resulting dynamics can…
Cooperative Dilemmas in Rational Debate
Toby Handfield, Julián Garcia, Christian Hilbe +1
As an epistemic activity, rational debate and discussion requires cooperation, yet involves a tension between collective and individual interests. While all participants benefit fr…
Adaptive dynamics of direct reciprocity with N rounds of memory
Nataliya A. Balabanova, Manh Hong Duong, Christian Hilbe
The theory of direct reciprocity explores how individuals cooperate when they interact repeatedly. In repeated interactions, individuals can condition their behaviour on what happe…
The co-evolution of direct, indirect and generalized reciprocity
Saptarshi Pal, Christian Hilbe, Nikoleta E Glynatsi
People often engage in costly cooperation, especially in repeated interactions. When deciding whether to cooperate, individuals typically take into account how others have acted in…
Indirect reciprocity under opinion synchronization
Yohsuke Murase, Christian Hilbe
Indirect reciprocity is a key explanation for the exceptional magnitude of cooperation among humans. This literature suggests that a large proportion of human cooperation is driven…
Conditional cooperation with longer memory
Nikoleta E. Glynatsi, Martin A. Nowak, Christian Hilbe
Direct reciprocity is a wide-spread mechanism for evolution of cooperation. In repeated interactions, players can condition their behavior on previous outcomes. A well known approa…
Evolution of reciprocity with limited payoff memory
Nikoleta E. Glynatsi, Alex McAvoy, Christian Hilbe
Direct reciprocity is a mechanism for the evolution of cooperation in repeated social interactions. According to this literature, individuals naturally learn to adopt conditionally…
Mutation enhances cooperation in direct reciprocity
Josef Tkadlec, Christian Hilbe, Martin A. Nowak
Direct reciprocity is a powerful mechanism for evolution of cooperation based on repeated interactions between the same individuals. But high levels of cooperation evolve only if t…
Indirect reciprocity with stochastic rules
Yohsuke Murase, Christian Hilbe
Cooperation is a crucial aspect of social life, yet understanding the nature of cooperation and how it can be promoted is an ongoing challenge. One mechanism for cooperation is ind…
Evolution of direct reciprocity in group-structured populations
Yohsuke Murase, Christian Hilbe, Seung Ki Baek
People tend to have their social interactions with members of their own community. Such group-structured interactions can have a profound impact on the behaviors that evolve. Group…
Evolutionary instability of selfish learning in repeated games
Alex McAvoy, Julian Kates-Harbeck, Krishnendu Chatterjee +1
Across many domains of interaction, both natural and artificial, individuals use past experience to shape future behaviors. The results of such learning processes depend on what in…
Comparing reactive and memory-one strategies of direct reciprocity
Seung Ki Baek, Hyeong-Chai Jeong, Christian Hilbe +1
Direct reciprocity is a mechanism for the evolution of cooperation based on repeated interactions. When individuals meet repeatedly, they can use conditional strategies to enforce…
The Evolution of Extortion in Iterated Prisoner's Dilemma Games
Christian Hilbe, Martin A. Nowak, Karl Sigmund
Iterated games are a fundamental component of economic and evolutionary game theory. They describe situations where two players interact repeatedly and have the possibility to use…