In this paper, we study a general class of semiparametric optimization estimators of a vector-valued parameter. The criterion function depends on two types of in nite-dimensional nuisance parameters: a conditional expectation function that has been estimated nonparametrically using generated...

Previous research implementing stratification on the propensity score has generally relied on using five strata, based on prior theoretical groundwork and minimal empirical evidence as to the suitability of quintiles to adequately reduce bias in all cases and across all sample sizes. This study...

Die Evaluierung der Investitionen in Ausbildung undihrer Wirkungen auf den Arbeitsmarkt ist in modernen Gesellschaften von zentralemInteresse. Gewöhnlich ist die Meinung gegenüber der ökonomischen und gesellschaftlichenRendite der Ausbildung positiv: ein Mehr an Ausbildung zieht eine...

Objective:  To review the efficacy of instrumental variable (IV) models in addressing a variety of assumption violations to ensure standard ordinary least squares (OLS) estimates are consistent. IV models gained popularity in outcomes research because of their ability to consistently estimate...

This paper estimates causal effects of two Polish active labor market policies - Training and Intervention Works - on employment probabilities. Using data from the 18th wave of the Polish Labor Force Survey we discuss three stages of an appropriately designed matching procedure and demonstrate...

Thesis (Ph.D.)--University of Rochester. School of Medicine and Dentistry. Dept. of Biostatistics and Computational Biology, 2007.

This dissertation introduces three novel approaches for the econometric evaluation of heterogeneous treatment effects. The proposed methods consider the effects of a binary treatment on different characteristics of the outcome distribution.Section 1 proposes an estimation method for various...

In the ¯rst of the essays, I reassess the relationship between premarital cohab-itation and marital instability both theoretically and empirically. It has become astylized fact that premarital cohabitation is positively correlated with the likelihood ofmarital dissolution. This is...

Este artículo aborda la siguiente pregunta: ¿cuál habría sido el PIB per cápita del área del euro si no se hubiese creado la unión monetaria? Para intentar contestarla, utilizamos la metodología de control sintético [Abadie y Gardeázabal (2003) y Abadie et al. (2010)]. Nuestros...

This paper investigates the determinants of participation and performance of tobacco contract farmers, and the effects of participation on overall crop and household incomes in the Zambezi Valley of Mozambique. We test the existence of threshold effects in land holdings and educational...