In Multivariate Linear Regression (MLR) models, multi-equation diagnostic tests pose some problems not encountered in the analysis of univariate models. In particular, test size distortions grow quickly as the number of cross-equation correlations increases. Despite the widespread recognition of this problem, finite sample multivariate specification tests are rare. In this paper, we propose a g...

A study on heat and mass transfer behaviour on an anisotropic porous medium embedded in square cavity/annulus is conducted using Incompressibe Smoothed Particle Hydrodynamics (ISPH) method. In the case of square cavity, the left wall has hot temperature Th and mass Ch and the right wall has cool temperature Tc and mass Cc and both of the top and bottom walls are adiabatic. While in the case of ...

In this paper we consider the problem of making inference on a structural parameter in instrumental variables regression when the instruments are only weakly correlated with the endogenous explanatory variables. Adopting a local-to-zero assumption as in Staiger and Stock (1994) on the coe cients of the instruments in the rst stage equation, the asymptotic distributions of various test statistic...

Two linear estimators for stationary invertible vector autoregressive moving average (VARMA) models in echelon form – to achieve parameter unicity (identification) – with known Kronecker indices are studied. It is shown that both estimators are consistent and asymptotically normal with strong innovations. The first estimator is a generalized-least-squares (GLS) version of the two-step least-squ...

This research deals with the mathematical model for development of peristaltic principle combination pressure and electroosmotic flow (EOF) ionic liquid across microchannels electrokinetic effects. For thermomechanical dynamics, convective conditions on boundary mass heat transfer at walls channel are quantified. microchannel, a porous structure is presumed. Soret, Dufour, Joule heating also li...

Dans ce numero, huit collegues proposent leur contribution a la rubrique Debat-discussion. Il s’agit de Celine Douzet (Reseau Canope), Mallory Schaub (Universite Geneve), Valerie Blondeau, Elodie Dufour-Merle et Solene Robert (CNED), Nathalie Francois (Learning designer, job@skills) Nicolas Roland Bruxelles, Cafeine Studio) enfin Besma Ben Salah (Institut superieur des etudes technologiques Sou...