著者

A. CHATURVEDI TRAN VAN HOA GOVIND SHUKLA

出版者

JAPANESE ECONOMIC ASSOCIATION

雑誌

The Economic Studies Quarterly (ISSN:0557109X)

巻号頁・発行日

vol.44, no.2, pp.97-107, 1993-06-18 (Released:2007-10-19)

参考文献数

9

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The paper investigates the effects of misspecifying the disturbances in a linear regression model as spherical on the efficiency properties of the Stein-rule estimators. Asymptotic distribution of the Stein-rule estimator based on the OLS estimator is derived when the disturbances covariance matrix is nonscalar. The effects of non-spherical disturbances on the dominance conditions of the Stein-rule estimator is also observed. The risks under quadratic loss function of the Stein-rule estimators based on the OLS and the FGLS estimators are compared under a Pitman drift criterion.