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| 1 |
ID:
165353
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| Summary/Abstract |
This study applies a non-parametric causality-in-quantiles test to examine the causal effect of geopolitical risks on return and volatility dynamics of Islamic equity and bond markets. Geopolitical risks are generally found to impact Islamic equity market volatility measures, rather than returns. However, geopolitical risks tend to predict both returns and volatility measures of Islamic bonds. Interestingly, causality, when it exists for returns and/or volatility of Islamic equities and bonds, is found to hold over entire conditional distributions of returns and volatilities, barring the extreme ends of the same.
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| 2 |
ID:
184052
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| Summary/Abstract |
Are price discontinuities in cryptocurrencies jointly related to large swings in geopolitical risk? This is a relevant question to answer given recent news from the press that Bitcoin’s price jumps are driven by jumps in the level of geopolitical risk index. To answer this question, we examine first the jump incidence of daily returns for Bitcoin and other leading cryptocurrencies and then study the co-jumps between cryptocurrencies and the geopolitical risk index using logistic regressions. Our dataset is at the daily frequency and covers the period 30 April 2013 to 31 October 2019. The results show that the price behaviour of all cryptocurrencies under study is jumpy but only Bitcoin jumps are dependent on jumps in the geopolitical risk index. This revealed evidence of significant co-jumps for the case of Bitcoin only nicely complements previous studies arguing that Bitcoin is a hedge against geopolitical risk.
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| 3 |
ID:
171440
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| Summary/Abstract |
We analyze for the first time how various levels of oil returns and oil volatility changes affect sovereign risk in static and time-varying settings. Empirical analyses involve daily data from February 14, 2011 to November 23, 2018 covering a sample of MENA oil-exporters and importers. The results from a quantile-based approach show that the sovereign risk of MENA oil-exporters and importers is directionally predicted by shocks in oil prices and oil volatility, especially during the oil crash of 2014–2016. Overall, the impact of oil returns and volatility changes occur in a very short time span, that is within one day lag, and the quantile specific reactions of sovereign risk spreads are time varying. The impact of oil returns is asymmetric across quantiles. The results hold when we control for stock market returns. The findings have implications for investors in terms of portfolio and risk management. Importantly, the findings are useful to policymakers for sovereign risk management decisions, the cost of sovereign borrowing, and the market timing of debt issuance. Finally, the findings matter to bankers given that central and domestic banks hold large amounts of sovereign debt, which makes banking systems particularly exposed to their own sovereign stress.
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