relationship and the interactions on price and volatility, with special focus on the covolatility spillover effects for these two … volatility or covolatility in another asset, between the energy and agricultural industries is the primary emphasis of the paper … sought to find a relationship among commodity prices. Only a few published papers have been concerned with volatility …

One of the most popular univariate asymmetric conditional volatility models is the exponential GARCH (or EGARCH …) specification. In addition to asymmetry, which captures the different effects on conditional volatility of positive and negative … subsequent shocks to volatility. However, the statistical properties of the (quasi-) maximum likelihood estimator of the EGARCH …