Download This PaperA Three Line Proof that OLS is BLUE
2 Pages Posted: 4 May 2012
Date Written: April 11, 2012
Abstract
We provide a three line proof that the Ordinary Least Squares estimator is the (conditionally) best linear unbiased estimator.
Keywords: efficiency, Gauss-Markov, OLS estimator
JEL Classification: C01, C13
Suggested Citation: Suggested Citation
White, Halbert L. and Cho, Jin Seo, A Three Line Proof that OLS is BLUE (April 11, 2012). Available at SSRN: https://ssrn.com/abstract=2050611 or http://dx.doi.org/10.2139/ssrn.2050611
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