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IJSTR >> Volume 4 - Issue 5, May 2015 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Some Finite Sample Properties Of Seemingly Unrelated Unrestricted Regression Model A New Approach

[Full Text]



Ghazal.A.Ghazal, Salwa.A.Hegazy



Keywords: Seemingly unrelated unrestricted; (SUUR) model; exact finite sample properties; exact moment



Abstract: this article, study some finite sample properties of zellner estimators, when the case of the regressors in the second equation is subset of the regressors in the first equation. A new approach is given based on the unrestricted residual, we derive the exact first and second moment of the estimator. Consider with the orthogonal condition and normality of the disturbances terms.



[1] Aiyi Liu,”efficient estimation of two seemingly unrelated equation”, journal of multivariate analysis ,vol 82,p 445-456,(2002).

[2] Abadir.K.M. and Magnus .J.R, "Matrix algebra”, Cambridge (2005).

[3] Ghazal ,A. G,"moment of the ratio of two dependent quadratic forms", institute of statistic, Cairo university,(1993).

[4] Greene, W.H., "Econometric Analysis", 5th, Macmillan: New York ,(2002).

[5] Kakwani, N.C.,"The Unbiasedness of Zellner's Seemingly Unrelated Regression Equations Estimators, "Journal of the American Statistical Association, vol 62, No 317, pp141-142. (1967).

[6] Mehta , J.S. and swamy , P.A.V.B, "further evidence on the relative efficiencies of Zellner's seemingly unrelated regressions estimator ", Journal of the

[7] Revankar , N.S., "some finite sample results in the context of two seemingly unrelated regressions" , Journal of the American Statistical Association , vol . 68,pp.187-190 ,(1974).

[8] Sawa, T.,"finite sample properties of the K-Class estimators", Econometrica , vol 40,pp.653-680 (1972).

[9] Srivastava,V .k. , "seemingly unrelated regression equations models estimation and inference" ,.Marcel Dekker, Inc.New York (1987).

[10] Zellner , A., "an efficient method of estimating seemingly unrelated regression equations and tests for aggregation bias" , Journal of the American Statistical Association , vol.57,pp. 348-368. (1962).

[11] ______"estimators for seemingly unrelated regression equations. some exact finite sample results", Journal of the American Statistical Association ,vol. 58, pp.977-992,(1963).