It is well known that confidence intervals for weakly identified parameters are unbounded with positive probability (e.g. Dufour, Econometrica 65, pp. 1365-1387 and Staiger and Stock, Econometrica 65, pp. 557-586), and that the asymptotic risk of their estimators is unbounded (Pötscher, Econometrica 70, pp.1035-1065). In this note we extend these “impossibility results” and show that uniformly ...

The Soret and Dufour effects on unsteady MHD mixed convection flow past an infinite radiative vertical porous plate embedded in a porous medium in the presence of chemical reaction have been studied. A uniform magnetic field acts perpendicular to the porous surface. The Rosseland approximation has been used to describe the radiative heat flux in energy equation. The governing equations are solv...

“We are grateful to J. Britton-Davidian, T. J. Robinson, and J. Watson for their contributions in collecting the founder animals, J. Perez and M. Perriat-Sanguinet for their help in maintaining the breeding colony, P.-A. Crochet for advice on statistical analyses and C.M.-S. Dufour and Y. Latour for helpful discussions. This work was supported by the French National Research Agency (ANR grant “...

UNSTEADY HEAT AND MASS TRANSFER BY MHD MIXED CONVECTION FLOW OVER AN IMPULSIVELY STRETCHED VERTICAL SURFACE WITH CHEMICAL REACTION AND SORET AND DUFOUR EFFECTS Ali J. Chamkha a & S. M. M. El-Kabeir b c a Manufacturing Engineering Department , The Public Authority for Applied Education and Training , Shuweikh , Kuwait b Department of Mathematics , Faculty of Science, Aswan University , Aswan , E...

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