Research Staff

Sokbae (Simon) Lee

Columbia University and IFS

Sokbae is a Professor of Economics at Columbia University. His research focuses on theoretical and applied econometrics.

Selected Publications

Intersection bounds: estimation and inference

We develop a practical and novel method for inference on intersection bounds, namely bounds defined by […]

Victor Chernozhukov, Sokbae (Simon) Lee, Adam Rosen
17 October 2012 | CWP33/12

Latest version

Intersection bounds: estimation and inference
Victor Chernozhukov, Sokbae (Simon) Lee, Adam Rosen
1 March 2013 | Journal Article

Previous version

Intersection bounds: estimation and inference
Victor Chernozhukov, Sokbae (Simon) Lee, Adam Rosen
4 November 2011 | CWP34/11
Uniform confidence bands for functions estimated nonparametrically with instrumental variables

This paper is concerned with developing uniform confidence bands for functions estimated nonparametrically with instrumental variables. […]

Joel L. Horowitz, Sokbae (Simon) Lee
30 June 2012 | Journal Article

Previous version

Does it matter who responded to the survey? Trends in the U.S. gender earnings gap revisited

Studies have shown a decreasing trend in the U.S. gender earnings gap since the 1980s. The […]

Jungmin Lee, Sokbae (Simon) Lee
31 January 2012 | Journal Article

Previous version

Testing for threshold effects in regression models

In this article, we develop a general method for testing threshold effects in regression models, using […]

Sokbae (Simon) Lee, Myung Hwan Seo, Youngki Shin
31 December 2011 | Journal Article

Previous version

Testing for threshold effects in regression models
Sokbae (Simon) Lee, Myung Hwan Seo, Youngki Shin
3 December 2010 | CWP36/10
Intersection bounds: estimation and inference

We develop a practical and novel method for inference on intersection bounds, namely bounds defined by […]

Victor Chernozhukov, Sokbae (Simon) Lee, Adam Rosen
4 November 2011 | CWP34/11

Latest version

Intersection bounds: estimation and inference
Victor Chernozhukov, Sokbae (Simon) Lee, Adam Rosen
17 October 2012 | CWP33/12

Previous version

Intersection Bounds: estimation and inference
Victor Chernozhukov, Sokbae (Simon) Lee, Adam Rosen
28 July 2009 | CWP19/09
Trends in quality-adjusted skill premia in the United States, 1960-2000

This paper presents new evidence that increases in college enrollment lead to a decline in the […]

Pedro Carneiro, Sokbae (Simon) Lee
30 October 2011 | Journal Article

Previous version

Trends in quality-adjusted skill premia in the United States, 1960-2000
Pedro Carneiro, Sokbae (Simon) Lee
23 January 2009 | CWP02/09
Is distance dying at last? Falling home bias in fixed effects models of patent citations

We examine the “home bias” of knowledge spillovers (the idea that knowledge spreads more slowly over […]

Rachel Griffith, Sokbae (Simon) Lee, John Van Reenen
24 May 2011 | CWP18/11
Local identification of nonparametric and semiparametric models

In parametric models a sufficient condition for local identification is that the vector of moment conditions […]

Xiaohong Chen, Victor Chernozhukov, Sokbae (Simon) Lee, Whitney K. Newey
23 May 2011 | CWP17/11

Latest version

Local identification of nonparametric and semiparametric models
Xiaohong Chen, Victor Chernozhukov, Sokbae (Simon) Lee, Whitney K. Newey
14 November 2012 | CWP37/12
Testing functional inequalities

This paper develops tests for inequality constraints of nonparametric regression functions. The test statistics involve a […]

Sokbae (Simon) Lee, Kyungchui (Kevin) Song, Yoon-Jae Whang
22 February 2011 | CWP12/11

Latest version

Testing functional inequalities
Sokbae (Simon) Lee, Song, Kyungchul, Yoon-Jae Whang
31 January 2013 | Journal Article
Does it matter who responded to the survey? Trends in the U.S. gender earnings gap revisited

Blau and Kahn (JOLE, 1997; ILRR, 2006) decomposed trends in the U.S. gender earnings gap into […]

Jungmin Lee, Sokbae (Simon) Lee
11 February 2011 | CWP05/11

Latest version

Does it matter who responded to the survey? Trends in the U.S. gender earnings gap revisited
Jungmin Lee, Sokbae (Simon) Lee
31 January 2012 | Journal Article