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

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, extracting multiple… Continue reading.

Hyuk-Soo Kwon, Jihong Lee, Sokbae (Simon) Lee, Ryungha Oh
30 October 2019 | CWP58/19

Previous version

Knowledge spillovers and patent citations: trends in geographic localization, 1976-2015
Hyuk-Soo Kwon, Jihong Lee, Sokbae (Simon) Lee, Ryungha Oh
6 December 2017 | CWP55/17
Non-asymptotic inference in a class of optimization problems

This paper describes a method for carrying out non-asymptotic inference on partially identified parameters that are… Continue reading.

Joel L. Horowitz, Sokbae (Simon) Lee
17 May 2019 | CWP23/19
Optimal Data Collection for Randomized Control Trials

In a randomized control trial, the precision of an average treatment effect estimator and the power… Continue reading.

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… Continue reading.

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… Continue reading.

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… Continue reading.

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… Continue reading.

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… Continue reading.

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… Continue reading.

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… Continue reading.

Le-Yu Chen, Sokbae (Simon) Lee
22 November 2017 | CWP51/17