Search Results for author: Haiqing Xu

Found 5 papers, 1 papers with code

On Quantile Treatment Effects, Rank Similarity, and Variation of Instrumental Variables

no code implementations27 Nov 2023 Sukjin Han, Haiqing Xu

This paper investigates how certain relationship between observed and counterfactual distributions serves as an identifying condition for treatment effects when the treatment is endogenous, and shows that this condition holds in a range of nonparametric models for treatment effects.

counterfactual

Over-the-Counter Market Making via Reinforcement Learning

no code implementations4 Jul 2023 Zhou Fang, Haiqing Xu

The over-the-counter (OTC) market is characterized by a unique feature that allows market makers to adjust bid-ask spreads based on order size.

reinforcement-learning

Market Making of Options via Reinforcement Learning

no code implementations4 Jul 2023 Zhou Fang, Haiqing Xu

Market making of options with different maturities and strikes is a challenging problem due to its high dimensional nature.

reinforcement-learning

A Local Machine Learning Approach for Fingerprint-based Indoor Localization

1 code implementation21 Feb 2023 Nora Agah, Brian Evans, Xiao Meng, Haiqing Xu

The primary contribution of this paper is to introduce a novel local ML solution for indoor localization problems.

Indoor Localization

Testing for Unobserved Heterogeneous Treatment Effects with Observational Data

no code implementations20 Mar 2018 Yu-Chin Hsu, Ta-Cheng Huang, Haiqing Xu

Unobserved heterogeneous treatment effects have been emphasized in the recent policy evaluation literature (see e. g., Heckman and Vytlacil, 2005).

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