5 papers
Coasian Dynamics with Free Disposability and Zero Marginal Cost: Information Goods
Zihao Li
This paper studies a durable goods monopoly with multiple provision levels, free disposability, and zero marginal cost. We establish a Folk-Theorem-type result: as parties become s…
Leveraging Large Language Models for Causal Discovery: a Constraint-based, Argumentation-driven Approach
Zihao Li, Fabrizio Russo
Causal discovery seeks to uncover causal relations from data, typically represented as causal graphs, and is essential for predicting the effects of interventions. While expert kno…
Dynamic Mechanism Design without Monetary Transfers: A Queueing Theory Approach
Zihao Li, Xuandong Chen
We study the design of optimal allocation mechanisms in an environment where agents and goods arrive stochastically. Agents have private types that determine the principal payoff.…
Sequentially Optimal Pricing under Informational Robustness
Zihao Li, Jonathan Libgober, Xiaosheng Mu
A seller sells an object over time but is uncertain how the buyer learns their willingness-to-pay. We consider informational robustness under \textit{limited commitment}, where the…
Randomized coordinate gradient descent almost surely escapes strict saddle points
Ziang Chen, Yingzhou Li, Zihao Li
We analyze the behavior of randomized coordinate gradient descent for nonconvex optimization, proving that under standard assumptions, the iterates almost surely escape strict sadd…