2007, Vol. 31, Núm. 2

Sumari

  • On modelling planning under uncertainty in manufacturing 

    Alonso-Ayuso, A.; Escudero, L. F.; Ortuño, M. T. (Institut d'Estadística de Catalunya, 2007)
    Article
    Accés obert
    We present a modelling framework for two-stage and multi-stage mixed 0−1 problems under uncertainty for strategic Supply Chain Management, tactical production planning and operations assignment and scheduling. A scenario ...

  • Poverty measures and poverty orderings 

    Sordo, Miguel A.; Ramos, H.M.; Ramos, C.D. (Institut d'Estadística de Catalunya, 2007)
    Article
    Accés obert
    We examine the conditions under which unanimous poverty rankings of income distributions can be obtained for a general class of poverty indices. The “per-capita income gap” and the Shorrocks and Thon poverty measures are ...

  • Bayesian joint modelling of the mean and covariance structures for normal longitudinal data 

    Cepeda-Cuervo, Edilberto; Núñez-Antón, Vicente (Institut d'Estadística de Catalunya, 2007)
    Article
    Accés obert
    We consider the joint modelling of the mean and covariance structures for the general antedependence model, estimating their parameters and the innovation variances in a longitudinal data context. We propose a new and ...

  • A recursion formula for expected negative and positive powers of the central Wishart distribution 

    Neudecker, Heinz (Institut d'Estadística de Catalunya, 2007)
    Article
    Accés obert
    We use Haff’s fundamental identity to express the expectation of Sp in lower-order terms, where S follows the central Wishart distribution.