Shota Takeishi
I am a postdoctoral fellow at the Department of Statistics and Data Science at Washington University in St. Louis. I am on the job market for the 2026–2027 hiring cycle.
- Email: shota(atmark)wustl.edu
- Google Scholar
- ORCID
- GitHub
Research interests
Treatment-effect and subgroup heterogeneity; quantile regression; random effects models.
Published and accepted papers
- Scalable estimation of crossed random effects models via multi-way discretization (with Shonosuke Sugasawa), accepted to Journal of the American Statistical Association. (arXiv)
- Hypothesis testing for treatment effect heterogeneity via an adaptively augmented debiased estimator (with Xuming He), ASA Discoveries 1(1), 2026, Article 2670543.
- A shrinkage likelihood ratio test for high-dimensional subgroup analysis with a logistic-normal mixture model , Electronic Journal of Statistics 19(1), 2025, 1942-1980. (arXiv)
- Asymptotic properties of the maximum smoothed partial likelihood estimator in the change-plane Cox model , Scandinavian Journal of Statistics 50(3), 2023, 1503-1531. (arXiv)
Working papers
- Testing for Unobserved Heterogeneity in Censored Duration Models: EM Approach (with Hiroyuki Kasahara, Hirokazu Matsuyama, and Katsumi Shimotsu), arXiv:2609.36824.
- On prediction-powered inference for quantile regression via convolution smoothing. (with Jimin Ding and Xuming He), arXiv:2606.04128, Revise and resubmit at Journal of Business & Economic Statistics.
CV
Education
- 2024 Ph.D. (Economics) Department of Statistics, Graduate School of Economics, University of Tokyo (advisor: Katsumi Shimotsu)
- 2021 M.A. (Economics) Department of Statistics, Graduate School of Economics, University of Tokyo
- 2018 B.A. (Law) Department of Political Science, Faculty of Law, Keio University
Employment
- 2024- Postdoctoral Fellow, Department of Statistics and Data Science, Washington University in St. Louis (advisor: Xuming He)
- 2023-2024 Project Researcher/Project Assistant Professor, Risk Analysis Research Center, The Institute of Statistical Mathematics
- 2022-2023 Research Fellow-DC2, Japan Society for the Promotion of Science
Teaching experience
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Washington University in St. Louis
- Elementary to Intermediate Statistics and Data Analysis: Spring 2025, Fall 2025, Spring 2026, Fall 2026 (ongoing).
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Chiba University
- Seminar (Statistics): Spring 2024.