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.

Hay evidencia en la literatura sobre episodios de consolidación fiscal que producen efectos expansivos (no keynesianos) (por ejemplo, Alesina y Ardagna, 1998). En este documento replicamos este resultado para un grupo de países de la OCDE asumiendo exogeneidad de la decisión de ajuste fiscal,...

La incertidumbre del modelo continúa siendo un reto para los investigadores aplicados. En general, al llevar a cabo una investigación empírica hay diferentes modelos/ especificaciones disponibles para estudiar el efecto de interés. Frente a esta situación, la técnica más común es...

En este trabajo se analiza la dinámica de propagación de las perturbaciones de los ciclos económicos regionales en Europa y se identifican sus principales factores subyacentes. Asimismo, se propone un nuevo método para medir la sincronización variable en el tiempo en muestras pequeñas, que...

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...