Publication . Ferreira, Sandra S.; Ferreira, Dário; Nunes, Célia; Mexia, João T.
The article addresses alternative estimators for estimable vectors. The relative performances of the proposed estimators are studied through numerical analysis. The major motivation behind this article is providing an optimal estimator through applying simple modifications in models with Orthogonal Block Structure. In addition, an illustrative example is presented to demonstrate the efficiency and accuracy of the proposed method.