Research Staff
Sokbae (Simon) Lee
Columbia University and IFS
Selected Publications
In this paper, we investigate what can be learned about average counterfactual outcomes when it is […]
In this paper, we propose a general method for testing inequality restrictions on nonparametric functions. Our […]
In parametric, nonlinear structural models, a classical sufficient condition for local identification, like Fisher (1966) and […]
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We provide new conditions for identification of accelerated failure time competing risks models. These include Roy […]
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We present the clrbound, clr2bound, clr3bound and clrtest commands for estimation and inference developed by Chernozhukov […]
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The Cold War division of Korea, regarded as a natural experiment in institutional change, provides a […]
This paper develops maximum score estimation of preference parameters in the binary choice model under uncertainty […]
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We develop a practical and novel method for inference on intersection bounds, namely bounds defined by […]
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This paper develops tests for inequality constraints of nonparametric regression functions. The test statistics involve a […]
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In parametric models a sufficient condition for local identification is that the vector of moment is […]