| Article ID: | iaor20032575 |
| Country: | Germany |
| Volume: | 56 |
| Issue: | 3 |
| Start Page Number: | 247 |
| End Page Number: | 258 |
| Publication Date: | Jan 2002 |
| Journal: | Metrika |
| Authors: | Shin D.W. |
For spatial regressions with sinusoidal surfaces, the ordinary least squares estimator is shown to be asymptotically as efficient as the generalized least squares estimator in that the covariance matrices of the two estimators have the same nontrivial limit under the same normalization.