Estimation of parameters in linear fixed and mixed effects models, under order restrictions on the error variances, is considered in this article. For simplicity of exposition, we shall assume that the error variances are subject to simple order restriction. Similar methodology can be developed...

We introduce multivariate state space models for estimating and forecasting fertility rates that are dynamic alternatives to logistic representations for fixed time points. Strategies are provided for the Kalman filter and for quasi-Newton algorithm initialization, that assure the convergence of...

[eng] European agricultural policies emphasise the need to take into account the multifonctionality of agriculture, and reflect objectives concerning employment and the preservation of the economic and social texture in rural areas. These new policies grant new importance to farms which are part...

The degrees of freedom of semiparametric additive monotone models are derived using results about projections onto sums of order cones. Two important related questions are also studied, namely, the definition of estimators for the parameter of the error term and the formulation of specific...

In this paper, we derive some monotonicity properties of generalized entropy functionals of various multivariate distributions. These include the distributions of random eigenvalues arising in many hypothesis testing problems in multivariate analysis; the multivariate Liouville distributions;...

Following the comments of Schenker (1985), Efron (1987) introduced the BCa methodology to construct confidence intervals. In this article we demonstrate that the BCa confidence intervals can degenerate with a very high probability if a [greater-or-equal, slanted] 0.4. On the other hand, if a is...