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Are Islamic stock indexes exposed to systemic risk? Multivariate GARCH estimation of CoVaR

Nader Trabelsi and Nader Naifar

Research in International Business and Finance, 2017, vol. 42, issue C, 727-744

Abstract: The main objective of this paper is to assess the exposure of Islamic stock indexes to systemic tail events. We use Conditional Value-at-Risk (CoVaR) and Delta CoVaR measures as developed by Adrian and Brunnermeier (2011) and a sample of Islamic and conventional stock indexes, from various developed and emerging markets, during the period September 2005 to March 2015. The empirical results reveal that the systemic risk has a moderate adverse effect on Islamic indexes, with a lower level in Gulf Cooperation Council countries (GCC hereafter). The findings also show the Asian stock indexes can be considered as effective hedge assets, after the global financial crisis (GFC hereafter). Furthermore, the empirical reveal that portfolio including Islamic stock indexes performs better than a benchmark portfolio in turmoil periods. These findings have several implications in financial decisions including the strategy of stability and asset allocation.

Keywords: Systemic risk; CoVaR; Islamic stock indexes; Hedging strategy (search for similar items in EconPapers)
JEL-codes: C31 C58 G12 (search for similar items in EconPapers)
Date: 2017
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