On the Efficiencies of Several Generalized Least Squares Estimators in a Seemingly Unrelated Regression Model and a Heteroscedastic Model
1999 ◽
Vol 70
(1)
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pp. 86-94
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1991 ◽
Vol 20
(4)
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pp. 919-925
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2004 ◽
Vol 34
(1)
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pp. 37-54
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2001 ◽
Vol 19
(2)
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pp. 123-141
1987 ◽
Vol 16
(1)
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pp. 99-127
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