research
∙
08/01/2022
The Effect of Omitted Variables on the Sign of Regression Coefficients
Omitted variables are a common concern in empirical research. We show th...
research
∙
06/06/2022
Assessing Omitted Variable Bias when the Controls are Endogenous
Omitted variables are one of the most important threats to the identific...
research
∙
05/04/2022
Choosing Exogeneity Assumptions in Potential Outcome Models
There are many kinds of exogeneity assumptions. How should researchers c...
research
∙
12/31/2020
Assessing Sensitivity to Unconfoundedness: Estimation and Inference
This paper provides a set of methods for quantifying the robustness of t...
research
∙
12/30/2018
Salvaging Falsified Instrumental Variable Models
What should researchers do when their baseline model is refuted? We prov...
research
∙
04/29/2018