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On the Sparsity of Mallows’ Model Averaging Estimator

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We show that Mallows' model averaging estimator proposed by Hansen (2007) can be written as a least squares estimation with a weighted L<sub>1</sub> penalty and additional constraints. By exploiting this representation, we demonstrate that the weight vector obtained by this model averaging procedure has a...

Persistent link: https://www.econbiz.de/10012866057