Simulating Eutopia: Revisiting Long-term Fairness with Outcomes, Performativity, and Dynamics

Researchers develop Eutopia, a lending-process simulator, to study long-term fairness in AI-driven decision makers, finding that learning with performative dynamics leads to better efficiency and equity. The simulator tests performative and classical RL algorithms with fairness-aware utilities. Results show improved efficiency, equity, and inclusivity with well-designed fairness-aware utilities.