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Robust Covariance Estimation for Approximate Factor Models

In this paper, we study robust covariance estimation under the approximate factor model with observed factors. We propose a novel framework to first estimate the initial joint covariance matrix of the observed data and the factors, and then use it to recover the covariance matrix of the observed dat...

Deskribapen osoa

Gorde:
Xehetasun bibliografikoak
Argitaratua izan da:J Econom
Egile Nagusiak: Fan, Jianqing, Wang, Weichen, Zhong, Yiqiao
Formatua: Artigo
Hizkuntza:Inglês
Argitaratua: 2018
Gaiak:
Sarrera elektronikoa:https://ncbi.nlm.nih.gov/pmc/articles/PMC6287924/
https://ncbi.nlm.nih.gov/pubmed/30546195
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.jeconom.2018.09.003
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