Research Staff
Sokbae (Simon) Lee
Columbia University and IFS
Selected Publications
Multivalued treatment models have only been studied so far under restrictive assumptions: ordered choice, or more […]
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We develop a general class of nonparametric tests for treatment effects conditional on covariates. We consider […]
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Economic theory often provides shape restrictions on functions of interest in applications, such as monotonicity, convexity, […]
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The vast majority of immigrants to the United States at the beginning of the 20th century […]
This paper studies inference of preference parameters in semiparametric discrete choice models when these parameters are […]
We present the clrbound, clr2bound, clr3bound, and clrtest commands for estimation and inference on intersection bounds […]
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The estimation problem in this paper is motivated by the maximum score estimation of preference parameters […]
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There is considerable interest in understanding how important market frictions are in stiffing the transmission of […]
Using the Reinhart-Rogoff dataset, we find a debt threshold not around 90 percent but around 30 […]
We present the clrbound, clr2bound, clr3bound, and clrtest commands for estimation and inference on intersection bounds […]