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A multiple testing approach to the regularisation of large sample correlation matrices
Bailey, Natalia; Pesaran, M. Hashem; Smith, L. Vanessa - 2014
This paper proposes a novel regularisation method for the estimation of large covariance matrices, which makes use of insights from the multiple testing literature. The method tests the statistical significance of individual pair-wise correlations and sets to zero those elements that are not...
Persistent link: https://www.econbiz.de/10010361374
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A multiple testing approach to the regularisation of large sample correlation matrices
Bailey, Natalia; Pesaran, M. Hashem; Smith, L. Vanessa - 2015
it is easy to implement and does not require cross-validation. The MT estimator of the sample correlation matrix is shown …
Persistent link: https://www.econbiz.de/10011405221
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A Multiple Testing Approach to the Regularisation of Large Sample Correlation Markets
Bailey, Natalia - 2014
This paper proposes a novel regularisation method for the estimation of large covariance matrices, which makes use of insights from the multiple testing literature. The method tests the statistical significance of individual pair-wise correlations and sets to zero those elements that are not...
Persistent link: https://www.econbiz.de/10013051612
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A Multiple Testing Approach to the Regularisation of Large Sample Correlation Matrices
Bailey, Natalia - 2014
This paper proposes a novel regularisation method for the estimation of large covariance matrices, which makes use of insights from the multiple testing literature. The method tests the statistical significance of individual pair-wise correlations and sets to zero those elements that are not...
Persistent link: https://www.econbiz.de/10013053343
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Optimality and diversifiability of mean variance and arbitrage pricing portfolios
Pesaran, M. Hashem; Zaffaroni, Paolo - 2009
This paper investigates the limit properties of mean-variance (mv) and arbitrage pricing (ap) trading strategies using a general dynamic factor model, as the number of assets diverge to infinity. It extends the results obtained in the literature for the exact pricing case to two other cases of...
Persistent link: https://www.econbiz.de/10003910456
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Modelling volatilities and conditional correlations in futures markets with a multivariate t distribution
Pesaran, Bahram (contributor);  … - 2007
Persistent link: https://www.econbiz.de/10003491106
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Conditional volatility and correlations of weekly returns and the VaR analysis of 2008 stock market crash
Pesaran, Bahram; Pesaran, M. Hashem - In: Economic modelling 27 (2010) 6, pp. 1398-1416
Persistent link: https://www.econbiz.de/10008825760
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Modelling volatilities and conditional correlations in futures markets with a multivariate t distribution
Pesaran, Bahram (contributor);  … - 2007
This paper considers a multivariate t version of the Gaussian dynamic conditional correlation (DCC) model proposed by … than by GARCH type volatility estimates. The t-DCC estimation procedure is applied to a portfolio of daily returns on … suggest a general trend towards a lower level of return volatility, accompanied by a rising trend in conditional cross …
Persistent link: https://www.econbiz.de/10003586562
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Modelling volatilities and conditional correlations in futures markets with a multivariate t distribution
Pesaran, Bahram (contributor);  … - 2007
Persistent link: https://www.econbiz.de/10003499671
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Conditional volatility and correlations of weekly returns and the VaR analysis of 2008 stock market crash
Pesaran, M. Hashem - 2010
Persistent link: https://www.econbiz.de/10003981032