@article{Zoia_2002, title={Un teorema di rappresentazione per lo stimatore vincolato}, volume={62}, url={https://rivista-statistica.unibo.it/article/view/406}, DOI={10.6092/issn.1973-2201/406}, abstractNote={A recent result in partitioned inversion (Faliva and Zoia, 2000) paves the way to shed some more light on constrained estimation, as the paper shows for the linear model. Indeed, a novel closed-form expression for the restricted least-squares(RLS) estimator is derived, which reads as a mirror image of the well-known Theil’s(1961) solution and actually turns out to cover the latter as a special case. This leads eventually to an elegant representation theorem for the RLS estimator which combines classical and new results as well.}, number={2}, journal={Statistica}, author={Zoia, Maria Grazia}, year={2002}, month={Jan.}, pages={265–271} }