This article is concerned with the study of the tail correlation among equity indices by means of dynamic copula functions. The main idea is to consider the impact of the use of copula functions in the accuracy of the model´s parameters and in the computation of Value-at-Risk (VaR). Results...

Introduction -- Arbitrage Trading in Energy Market and Risk Measurement -- Fuel Markets Connectedness and Fuel Portfolio Risk -- Hedging Strategy with Futures Contracts -- Investing in a portfolio consisting of energies and related commodities.