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

Optimal Data Collection for Randomized Control Trials

In a randomized control trial, the precision of an average treatment effect estimator and the power […]

Pedro Carneiro, Sokbae (Simon) Lee, Daniel Wilhelm
2 May 2019 | CWP21/19

Previous version

Optimal data collection for randomized control trials
Pedro Carneiro, Sokbae (Simon) Lee, Daniel Wilhelm
23 October 2017 | CWP45/17
Identifying effects of multivalued treatments

Multivalued treatment models have typically been studied under restrictive assumptions: ordered choice, and more recently unordered […]

Sokbae (Simon) Lee, Bernard Salanie
12 June 2018 | CWP34/18

Previous version

Identifying effects of multivalued treatments
Sokbae (Simon) Lee, Bernard Salanie
8 December 2015 | CWP72/15
Identifying the effect of persuasion

We set up an econometric model of persuasion and study identification of key parameters under various […]

Sung Jae Jun, Sokbae (Simon) Lee
19 March 2018 | CWP19/18

Latest version

Identifying the effect of persuasion
Sung Jae Jun, Sokbae (Simon) Lee
9 December 2019 | CWP69/19
Testing for a debt-threshold effect on output growth

Using the Reinhart–Rogoff dataset, we find a debt threshold not around 90 per cent but around […]

Sokbae (Simon) Lee, Hyunmin Park, Myung Hwan Seo, Youngki Shin
11 December 2017 | Journal Article
Knowledge spillovers and patent citations: trends in geographic localization, 1976-2015

This paper examines the trends in geographic localization of knowledge spillovers via patent citations, considering US […]

Hyuk-Soo Kwon, Jihong Lee, Sokbae (Simon) Lee, Ryungha Oh
6 December 2017 | CWP55/17

Latest version

Knowledge spillovers and patent citations: trends in geographic localization, 1976-2015
Hyuk-Soo Kwon, Jihong Lee, Sokbae (Simon) Lee, Ryungha Oh
30 October 2019 | CWP58/19
Testing for a general class of functional inequalities

In this article, we propose a general method for testing inequality restrictions on nonparametric functions. Our […]

Sokbae (Simon) Lee, Song, Kyungchul, Yoon-Jae Whang
1 December 2017 | Journal Article
Best subset binary prediction

We consider a variable selection problem for the prediction of binary outcomes. We study the best […]

Le-Yu Chen, Sokbae (Simon) Lee
22 November 2017 | CWP50/17
Breaking the curse of dimensionality in conditional moment inequalities for discrete choice models

This paper studies inference of preference parameters in semiparametric discrete choice models when these parameters are […]

Le-Yu Chen, Sokbae (Simon) Lee
22 November 2017 | CWP51/17
Exact computation of GMM estimators for instrumental variable quantile regression models

We show that the generalized method of moments (GMM) estimation problem in instrumental variable quantile regression […]

Le-Yu Chen, Sokbae (Simon) Lee
22 November 2017 | CWP52/17
Optimal data collection for randomized control trials

In a randomized control trial, the precision of an average treatment effect estimator and the power […]

Pedro Carneiro, Sokbae (Simon) Lee, Daniel Wilhelm
23 October 2017 | CWP45/17

Latest version

Optimal Data Collection for Randomized Control Trials
Pedro Carneiro, Sokbae (Simon) Lee, Daniel Wilhelm
2 May 2019 | CWP21/19

Previous version

Optimal data collection for randomized control trials
Pedro Carneiro, Sokbae (Simon) Lee, Daniel Wilhelm
1 April 2016 | CWP15/16