Portfolio Optimization Based on Forecasting Models Using Vine Copulas: An Empirical Assessment for the Financial Crisis

40 Pages Posted: 10 Jan 2020

See all articles by Maziar Sahamkhadam

Maziar Sahamkhadam

Linnaeus University

Andreas Stephan

Jonkoping University, Jonkoping International Business School

Date Written: December 21, 2019

Abstract

We employ and examine vine copulas in modeling symmetric and asymmetric dependency structures and forecasting financial returns. We analyze the asset allocations performed during the 2008–2009 financial crisis and test different portfolio strategies such as maximum Sharpe ratio, minimum variance, and minimum conditional Value-at-Risk. We then specify the regular, drawable, and canonical vine copulas, such as the Student−t, Clayton, Frank, Joe, Gumbel, and mixed copulas, and analyze both in-sample and out-of-sample portfolio performances. Out-of-sample portfolio back-testing shows that vine copulas reduce portfolio risk better than simple copulas. Our econometric analysis of the outcomes of the various models shows that in terms of reducing conditional Value-at-Risk, D-vines appear to be better than R- and C-vines. Overall, we find that the Student−t drawable vine copula models perform best with regard to risk reduction, both for the entire period 2005–2012 as well as during the financial crisis.

Keywords: Vine Copula, Asymmetric Tail Dependence, Portfolio Optimization, Value-at-Risk Back-testing

JEL Classification: G11, G01

Suggested Citation

Sahamkhadam, Maziar and Stephan, Andreas, Portfolio Optimization Based on Forecasting Models Using Vine Copulas: An Empirical Assessment for the Financial Crisis (December 21, 2019). Available at SSRN: https://ssrn.com/abstract=3507936 or http://dx.doi.org/10.2139/ssrn.3507936

Maziar Sahamkhadam

Linnaeus University ( email )

Växjö, S-35195
Sweden

Andreas Stephan (Contact Author)

Jonkoping University, Jonkoping International Business School ( email )

SE-551 11 Jonkoping
Sweden
55111 (Fax)

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