demonstrate that geopolitical risk plays an important role in determining both oil price volatility and (to a lesser extent) stock … market volatility. An increase in geopolitical risk is associated with positive (negative) oil (stock) returns and is … correlation. This model shows short- and long-term volatility persistence for oil and stock prices, together with spillover …

A model-free methodology is used for the first time to estimate a daily volatility index (VIBEX-NEW) for the Spanish … display a negative, tight contemporaneous relationship with IBEX daily returns, contrary to other common volatility indicators …, as an implied volatility indicator or a GARCH(1,1) conditional volatility model. This relationship is approximately …