5 papers · 1 filter
Group-Heterogeneous Changes-in-Changes and Distributional Synthetic Controls
Songnian Chen, Junlong Feng
We develop new changes-in-changes (CIC) and distributional synthetic controls (DSC) types of methods when there exists group-level heterogeneity. For CIC, we allow individuals to b…
Individual Welfare Analysis: Random Quasilinear Utility, Independence, and Confidence Bounds
Junlong Feng, Sokbae Lee
We introduce a novel framework for individual-level welfare analysis. It builds on a parametric model for continuous demand with a quasilinear utility function, allowing for hetero…
Regularized Quantile Regression with Interactive Fixed Effects
Junlong Feng
This paper studies large and large conditional quantile panel data models with interactive fixed effects. We propose a nuclear norm penalized estimator of the coefficients…
Matching Points: Supplementing Instruments with Covariates in Triangular Models
Junlong Feng
Models with a discrete endogenous variable are typically underidentified when the instrument takes on too few values. This paper presents a new method that matches pairs of covaria…
Robust Principal Component Analysis with Non-Sparse Errors
Jushan Bai, Junlong Feng
We show that when a high-dimensional data matrix is the sum of a low-rank matrix and a random error matrix with independent entries, the low-rank component can be consistently esti…