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A Modern Gauss-Markov Theorem? Really?

Benedikt M. Pötscher, David Preinerstorfer

arXiv 2 Mar 2022 · Mathematics — Statistics Theory · 1 citations (OpenAlex)

arXiv:2203.01425 · PDF · DOI · OpenAlex · Extracted main text

Abstract

We show that the theorems in Hansen (2021a) (the version accepted by Econometrica), except for one, are not new as they coincide with classical theorems like the good old Gauss-Markov or Aitken Theorem, respectively; the exceptional theorem is incorrect. Hansen (2021b) corrects this theorem. As a result, all theorems in the latter version coincide with the above mentioned classical theorems. Furthermore, we also show that the theorems in Hansen (2022) (the version published in Econometrica) either coincide with the classical theorems just mentioned, or contain extra assumptions that are alien to the Gauss-Markov or Aitken Theorem.

Citation extraction

14
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Most heavily cited references

The works this paper leans on most, across its whole bibliography — not restricted to papers in our corpus. Ranked by composite intensity, which combines how often a work is mentioned, how many sections mention it, and how much of that falls in the main text rather than the appendix.

ReferenceIntensityMentionsSectionsMain text
1Hansen, B. E (2022) A modern Gauss-Markov theorem1.000425100%
2Hansen, B. E (2021) 1A modern Gauss-Markov theorem, September 2021. Version accepted for publication in Econometrica0.99351798%
3Hansen, B. E (2021) 2A modern Gauss-Markov theorem, December 2021. Update of September 2021 version accepted for publication in Econometrica0.99350798%
4Portnoy, S (2022) Linearity of unbiased linear model estimators0.87472100%
5Hansen, B. E (2021) Econometrics0.84333100%
6Koopmann, R (1982) Parameterschätzung bei a priori Information0.80614279%
7Gnot, S., Knautz, G., Trenkler, G. and Zmyslony, R (1992) Nonlinear unbiased estimation in linear models0.7375260%
8Kagan, A. M. and Salaevskii, O (1969) The admissibility of least-squares estimates is an exclusive property of the normal law0.73732100%
9Halmos, P. R (1946) The theory of unbiased estimation0.6443267%
10Kagan, A. M., Linnik, Y. V. and Rao, C. R (1973) Characterization problems in mathematical statistics0.40511100%

Showing the top 10 of 14 scored citations.

Cited by, within the corpus

arXiv econ.EM papers that cite this one, ranked by how heavily they lean on it.

Citing paperIntensityMentionsSections
1What Estimators Are Unbiased For Linear Models?1.000133