This paper investigates original issuers of high yield bonds in Chapter 11 bankruptcy to determine which factors affect the length of time spent in Chapter 11. In order to do this analysis we propose a flexible new duration model, the censored partial regression model. This model allows us to...

In this work we study the effect of several covariates X on a censored response variable T with unknown probability distribution. A semiparametric model is proposed to consider situations where the functional form of the effect of one or more covariates is unknown. We provide its estimation...

In this paper we propose a new method to estimate nonparametrically a time varying parameter model when some qualitative information from outside data (e.g. seasonality) is available. In this framework we make two main contributions. First, the resulting estimator is shown to belong to the class...

This paper proposes a semiparametric option pricing model with liquidity, as proxied by the relative bid-ask spread. The nonparametric volatility function with liquidity as an explanatory variable is estimated using the Symmetrized Nearest Neighbors (SNN) estimator rather than the traditional...

We propose a two-stage procedure to estimate conditional beta pricing models that allow for flexibility in the dynamics of assets' covariances with risk factors and market prices of risk (MPR). First, conditional covariances are estimated nonparametrically for each asset and period using the...

The problem of specification errors in sample selection models has received considerable attention both theoretically and empirically. However, very few is known about the finite sample behavior of two step estimators. In this paper we investigate by simulations both bias and finite sample...

The paper investigates both linear and nonlinear causality between electricity consumption and economic growth in Spain for the period 1971-2005. We use the methodology of Toda and Yamamoto (1995) and Dolado and Lütkepohl (1996). We also apply the standard Granger causality tests in a VAR for...

Existen varias técnicas de análisis de tablas múltiples en la literatura. Estas técnicas tienen, sin embargo, lagunas de aplicación cuando las tablas están compuestas por un número diferente de individuos, especialmente si las variables incluidas en las tablas son cualitativas. Para este...

Also published as Working Paper DFAEII 2003-01

El objetivo fundamental de este trabajo es analizar las motivaciones dominantes en los alumnos de las Licenciaturas de Economía (LE) y Administración y Dirección de Empresas (LADE)a la hora de enfrentarse a las asignaturas de Estadística. Para ello se ha realizado una encuesta de opinión,...