Exploració per autor "Ventura, Eva"
Ara es mostren els items 1-6 de 6
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An empirical evaluation of five small area estimators
Costa, Àlex; Satorra, A.; Ventura, Eva (Institut d'Estadística de Catalunya, 2003)
Article
Accés obertThis paper compares five small area estimators. We use Monte Carlo simulation in the context of both artificial and real populations. In addition to the direct and indirect estimators, we consider the optimal composite ... -
Estimadores compuestos en estadística regional: una aplicación a la estimación de la tasa de variación de la ocupación en la industria
Costa, Àlex; Satorra, A.; Ventura, Eva (Institut d'Estadística de Catalunya, 2002)
Article
Accés obertEste trabajo es parte de un proyecto que estudia la aplicación de estimadores compuestos (combinación de estimadores directos e indirectos) para áreas pequeñas en estadística regional. Comparamos tres estimadores: uno ... -
Improving both domain and total area estimation by composition
Costa, Àlex; Satorra, A.; Ventura, Eva (Institut d'Estadística de Catalunya, 2004)
Article
Accés obertIn this article we propose small area estimators for both the small and large area parameters. When the objective is to estimate parameters at both levels, optimality is achieved by a sample design that combines fixed and ... -
Improving small area estimation by combining surveys: new perspectives in regional statistics.
Costa, Àlex; Satorra, A.; Ventura, Eva (Institut d'Estadística de Catalunya, 2006)
Article
Accés obertA national survey designed for estimating a specific population quantity is sometimes used for estimation of this quantity also for a small area, such as a province. Budget constraints do not allow a greater sample size ... -
On the performance of small-area estimators: fixed vs. random area parameters
Costa, Àlex; Satorra, A.; Ventura, Eva (Institut d'Estadística de Catalunya, 2009)
Article
Accés obertMost methods for small-area estimation are based on composite estimators derived from designor model-based methods. A composite estimator is a linear combination of a direct and an indirect estimator with weights that ... -
Product expenditure patterns in the ECPF survey: an analysis using multiple group latent-variables models
Satorra, A.; Ventura, Eva (Institut d'Estadística de Catalunya, 2001)
Article
Accés obertUsing data form the Spanish household budget survey, we investigate some aspects of household heterogeneity on several product expenditures. We adopt a latent-variable model approach to evaluate the impact of income on ...