About me

My name is Joonho (Phil) Hwang (황준호; 黃俊晧), and I am a fourth year PhD student in economics at Seoul National University, where I am fortunate to be advised by Professor Seojeong Lee. I am interested in econometrics with a focus on panel data, causal inference, and missing data problem. Click here for a copy of my CV.

Working papers

Online Updating for Linear Panel Regressions
joint with Seojeong Lee

abstract

In this paper, we develop online updating methods for linear panel regression models. Online updating refers to estimation and inference procedures designed for settings where data become available sequentially. In practice, the potential size of the dataset or data confidentiality constraints may preclude researchers from storing or accessing the entire dataset. We propose an online updating procedure for widely used linear regression models in panel data. Panel data involves two possible types of data expansions: (1) the arrival of new units, or (2) the arrival of additional time periods for existing units. We demonstrate procedures to update both regression coefficients and cluster-robust variance for each case.

Work in progress

Synthetic Difference-in-Differences with Missing Post-Treatment Outcomes
joint with Chencheng Fang

abstract

tbd