3 papers
cs.LG2026
Zero Collapse: A Failure Mode of Policy Gradient Methods in Discontinuous Reward Environments
Nishant Kumar, Enrique Areyan Viqueira, Amy Greenwald
Policy-gradient learning can deteriorate even after substantial initial improvement. We study this behavior in a repeated first-price auction setting with a sharp threshold between…
cs.GT2022
Computational and Data Requirements for Learning Generic Properties of Simulation-Based Games
Cyrus Cousins, Bhaskar Mishra, Enrique Areyan Viqueira +1
Empirical game-theoretic analysis (EGTA) is primarily focused on learning the equilibria of simulation-based games. Recent approaches have tackled this problem by learning a unifor…
cs.GT2021
A Consumer-Theoretic Characterization of Fisher Market Equilibria
Denizalp Goktas, Enrique Areyan Viqueira, Amy Greenwald
In this paper, we bring consumer theory to bear in the analysis of Fisher markets whose buyers have arbitrary continuous, concave, homogeneous (CCH) utility functions representing…