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Two-Stage Nonparametric Regression for Longitudinal Data
(1999-01)
In the analysis of longitudinal data it is of main interest to investigate the existence of group and individual effects under correlated observations across time. In this paper, we develop a nonparametric two-step procedure ...
Absorbing Sets in Coalitional Systems
(2001-12)
The purpose of this paper is twofold: First, to present an approach and a solution for analyzing the stability of coalition structures: We define a coalitional system (a set and a binary relation on that set) that explains ...
Un Modelo Lineal Generalizado Semiparametrico para Analisis de Duracion con Censura
(2000-07)
[EN] Aitkin and Clayton (1980) proposed to analyze duration models using generalized linear models. In this work we extend that methodology allowing for some nonspecified covariable effect. The model we propose is a ...
Nonparametric estimation of time varying parameters under shape restrictions
(2001-01)
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 ...
Conditional beta pricing models: A nonparametric approach
(2010)
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 ...
Factores de riesgo y supervivencia libre de tumor en pacientes con trasplante renal de cadáver
(2003)
[Background] There is an agreement in the fact that cancer incidence in transplant recipients increases at a rate disproportionately greater than in the general population. Several clinical studies have identified cancer ...
Productivity's development in the Basque Economy during the period 1985-1994
(1998-09)
[EN] The aim of this paper is to analyse the development of Basque Country's economy's productivity in the period 1985-1994 and, identify which are the factors that decide that evolution. We specify a Cobb-Douglas production ...
Multivariate Data Imputation using Trees
(2002)
We address the problem of completing two files with records containing a fully observed common subset of variables. The tecnique investigated involves the use of regression and/or classification trees. An extension of ...
Multiple imputation of time series: an application to the construction of historical price indexes
(2005)
Time series in many areas of application, and notably in the social sciences, are frequently incomplete. This is particularly annoying when we need to have complete data, for instance to compute indexes as a weighted average ...
Índices de Satisfacción del Consumidor: una aplicación de Modelos de Ecuaciones Estructurales a la Industria Automovilística Española
(2002-10)
El objetivo del presente trabajo es la obtención de la variable latente Satisfacción Global del Consumidor (SGC), a partir de 25 indicadores proporcionados por la revista Autopista para 130 modelos de coches. La metodología ...