12 citations · 29 across the 9 of their papers we have counts for
11 papers
Robust Algorithmic Collusion
Nicolas Eschenbaum, Filip Mellgren, Philipp Zahn
This paper develops a formal framework to assess policies of learning algorithms in economic games. We investigate whether reinforcement-learning agents with collusive pricing poli…
Composing games into complex institutions
Seth Frey, Jules Hedges, Joshua Tan +1
Game theory is used by all behavioral sciences, but its development has long centered around tools for relatively simple games and toy systems, such as the economic interpretation…
Bayesian open games
Joe Bolt, Jules Hedges, Philipp Zahn
This paper generalises the treatment of compositional game theory as introduced by Ghani et al. in 2018, where games are modelled as morphisms of a symmetric monoidal category. Fro…
Sequential games and nondeterministic selection functions
Joe Bolt, Jules Hedges, Philipp Zahn
This paper analyses Escardó and Oliva's generalisation of selection functions over a strong monad from a game-theoretic perspective. We focus on the case of the nondeterminism (fin…
On Rational Choice and the Representation of Decision Problems
Paulo Oliva, Philipp Zahn
In economic theory, an agent chooses from available alternatives -- modeled as a set. In decisions in the field or in the lab, however, agents do not have access to the set of alte…
Compositionality and String Diagrams for Game Theory
Jules Hedges, Evguenia Shprits, Viktor Winschel +1
We introduce string diagrams as a formal mathematical, graphical language to represent, compose, program and reason about games. The language is well established in quantum physics…