Error Covariance Matrix Estimation in High Dimensional Approximate Factor Models Using Adaptive Thresholding

Error Covariance Matrix Estimation in High Dimensional Approximate Factor Models Using Adaptive Thresholding
Author: Paul J. Chimenti
Publisher:
Total Pages:
Release: 2013
Genre:
ISBN:

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Abstract: Approximate factor models are popular in nance and economics. A key to eectively utilizing such a model is to accurately estimate the error covariance matrix. Errors related to certain predictors are expected to be correlated and this must be modeled eectively. Adaptive thresholding is a method for estimating the error covariance matrix of such a model. This method is described in detail and a simulation study sheds light on the behavior of this method under dierent sample sizes and parameterizations.


Error Covariance Matrix Estimation in High Dimensional Approximate Factor Models Using Adaptive Thresholding
Language: en
Pages:
Authors: Paul J. Chimenti
Categories:
Type: BOOK - Published: 2013 - Publisher:

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Abstract: Approximate factor models are popular in nance and economics. A key to eectively utilizing such a model is to accurately estimate the error covariance
High-Dimensional Covariance Estimation
Language: en
Pages: 204
Authors: Mohsen Pourahmadi
Categories: Mathematics
Type: BOOK - Published: 2013-06-24 - Publisher: John Wiley & Sons

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Methods for estimating sparse and large covariance matrices Covariance and correlation matrices play fundamental roles in every aspect of the analysis of multiv
Financial Signal Processing and Machine Learning
Language: en
Pages: 324
Authors: Ali N. Akansu
Categories: Technology & Engineering
Type: BOOK - Published: 2016-05-31 - Publisher: John Wiley & Sons

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The modern financial industry has been required to deal with large and diverse portfolios in a variety of asset classes often with limited market data available
Sparse Approximate Factor Estimation for High-dimensional Covariance Matrices
Language: en
Pages:
Authors: Maurizio Daniele
Categories:
Type: BOOK - Published: 2020 - Publisher:

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Threshold Selection for High Dimensional Covariance Estimation
Language: en
Pages: 0
Authors: Janaka S. S. Peragaswaththe Liyanage
Categories: Analysis of covariance
Type: BOOK - Published: 2018 - Publisher:

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Thresholding is a regularization method commonly used for covariance estimation (Bickel and Levina, 2008, Cai and Liu, 2011), which provides consistent estimato