by jumps in the price and volatility of crude oil. Data used are daily from 14 February 2011, to 31 July 2019. We detect … sovereign risks of oil-exporters are significantly affected by oil volatility jumps, not by oil price jumps. These findings … suggest that the sovereign risks of oil-exporters are affected by abrupt movements in oil implied volatility, which points to …

Previous sharp oil price declines have been accompanied by elevated ex post volatility. In contrast, volatility was … price declines. This finding is robust to nonparametric and GARCH measures of volatility. Further, the U.S. dollar … appreciation exerted a strong influence on volatility during the recent crash; in contrast, the impact of shocks on equity markets …