7 papers
Fully Distributed Tâtonnement for Chores Markets
Bhaskar Ray Chaudhury, Christian Kroer, Ruta Mehta +1
We study price-adjustment dynamics for computing competitive equilibria (CE) in Fisher markets with chores. Unlike in classical goods markets, prices in chores markets are payments…
Competitive Equilibrium in Labor Economies through the Lens of Goods and Chores Fisher Markets
Bhaskar Ray Chaudhury, Christian Kroer, Ruta Mehta +2
In this paper, we study a two-sided labor market that couples the classical Fisher market with goods and the Fisher market with bads into a single unified framework. In our model,…
Efficient Exploration for Iterative Nash Preference Optimization
Tianlong Nan, Xiaopeng Li, Christian Kroer +1
Preference alignment is central to improving large language models, but standard reward-based formulations can be restrictive when human preferences are cyclic, non-transitive, or…
On the Convergence of Alternating Gradient Descent-Ascent in Bilinear Games
Tianlong Nan, Shuvomoy Das Gupta, Garud Iyengar +1
We study the alternating gradient descent-ascent (AltGDA) algorithm in two-player zero-sum games. Alternating methods, where players take turns to update their strategies, have lon…
Tâtonnement Dynamics for Fisher Markets with Chores
Bhaskar Ray Chaudhury, Christian Kroer, Ruta Mehta +1
In this paper, we initiate the study of tâtonnement dynamics in markets with chores. Tâtonnement is a fundamental market dynamics, capturing how prices evolve when they are adjus…
On the Convergence of Tâtonnement for Linear Fisher Markets
Tianlong Nan, Yuan Gao, Christian Kroer
Tâtonnement is a simple, intuitive market process where prices are iteratively adjusted based on the difference between demand and supply. Many variants under different market ass…