Haoge Chang

I am an Assistant Professor in the Department of Economics at Columbia University. 

Email: hc3516@columbia.edu

Publications

1.  Completion of TP and TN border patterns. (2020)  Linear and Multilinear Algebra, Volume 68, 1753-1766. (with Charles Johnson)

2.  Exact Bias Correction for Linear Adjustment of Randomized Controlled Trials. (2024). Econometrica, Volume 92, 1503-1519. (with P.M. Aronow and Joel Middleton)

[Older Version] 

3.   Design-Based Inference for Spatial Experiments under Unknown Interference (2025). The Annals of Applied Statistics, 19(1): 744-768.  (with Ye Wang, Cyrus Samii, P.M. Aronow).  

[Link to arXiv]

4. Fast Permutation Inference for Randomized Experiments with Binary Outcomes (2025). Journal of Econometrics, Volume 251. (with P. M. Aronow and Patrick Lopatto).

[Link to arXiv] [Git]

5. A Meta-learner for Heterogeneous Effects in Difference-in-Differences  (2025). ICML. (with Hui Lan,  Eleanor Dillon, and Vasilis Syrgkanis). 

 [Link to arXiv]

6. Randomization-Based Confidence Intervals For the Local Average Treatment Effect (2026). Biometrika, Volume 113. (with P. M. Aronow and Patrick Lopatto).  

[Link to arXiv] [package]

7. Approximating Choice Data by Discrete Choice Models. Management Science, Accepted. (with Yusuke Narita and Kota Saito).

[Link to arXiv] [replication files]

Working Paper

1. Design-based Estimation Theory for Complex Experiments. [Link to arXiv]   

2. Randomization Inference For the Always-Reporter Average Treatment Effect (with Zeyang Yu) [Link to arXiv]