Publications

We analyze the sources of changes in the distribution of hourly wages in the United States… Continue reading.

In this paper we analyze a discrete choice model for partially ordered alternatives. The alternatives are… Continue reading.

We present a general framework for studying regularized estimators; such estimators are pervasive in estimation problems… Continue reading.

This paper presents a weighted optimization framework that unifies the binary, multi-valued, continuous, as well as… Continue reading.

We propose a solution to the measurement error problem that plagues the estimation of the relation… Continue reading.

Recent research underscores the sensitivity of conclusions drawn from the application of econometric methods devised for… Continue reading.

We investigate the consequences of discreteness in the assignment variable in regression-discontinuity designs for cases where… Continue reading.

This study develops a framework for testing hypotheses on structural parameters in in-complete models. Such models… Continue reading.

We set up an econometric model of persuasion and study identification of key parameters under various… Continue reading.

We compare two groups of the non-student Korean population—native-born South Koreans (SK) and North Korean refugees… Continue reading.

Many economic activities are embedded in networks: sets of agents and the (often) rivalrous relationships connecting… Continue reading.

We propose a nonparametric inference method for causal effects of continuous treatment variables, under unconfoundedness and… Continue reading.