volatility of carbon emissions, it is not surprising that crude oil and coal have recently become a very important research topic … causality and volatility spillovers in spot and futures prices of carbon emissions, crude oil, and coal. A likelihood ratio test … is developed to test the multivariate conditional volatility Diagonal BEKK model, which has valid regularity conditions …

markets, very little is known about the volatility transmission between these two markets. The present study aims to conceal … this gap by investigating the volatility cross effects between oil and three different non-energy commodity markets. Using … the bivariate VAR-GARCH models, we do not find any evidence of volatility linkage between oil and agricultural product …