68 citations · 107 across the 26 of their papers we have counts for
27 papers
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…
Tâtonnement in Homothetic Fisher Markets
Denizalp Goktas, Jiayi Zhao, Amy Greenwald
A prevalent theme in the economics and computation literature is to identify natural price-adjustment processes by which sellers and buyers in a market can discover equilibrium pri…
Fisher Markets with Social Influence
Jiayi Zhao, Denizalp Goktas, Amy Greenwald
A Fisher market is an economic model of buyer and seller interactions in which each buyer's utility depends only on the bundle of goods she obtains. Many people's interests, howeve…
Regret Pruning for Learning Equilibria in Simulation-Based Games
Bhaskar Mishra, Cyrus Cousins, Amy Greenwald
In recent years, empirical game-theoretic analysis (EGTA) has emerged as a powerful tool for analyzing games in which an exact specification of the utilities is unavailable. Instea…
Zero-Sum Stochastic Stackelberg Games
Denizalp Goktas, Jiayi Zhao, Amy Greenwald
Zero-sum stochastic games have found important applications in a variety of fields, from machine learning to economics. Work on this model has primarily focused on the computation…
Exploitability Minimization in Games and Beyond
Denizalp Goktas, Amy Greenwald
Pseudo-games are a natural and well-known generalization of normal-form games, in which the actions taken by each player affect not only the other players' payoffs, as in games, bu…