Asymmetric volatility refers to the stylized fact that stock volatility is negatively correlated to stock returns. Traditionally, this phenomenon has been explained by the financial leverage effect. This explanation has recently been challenged in favor of a risk premium based explanation. We...

Previous work on crude oil price modelling has generally focused on two theoretical approaches, either the+ optimal control analysis of pricing of a depletable resource or Organization of the Petroleum Exporting Countries (OPEC) as a partial monopolist setting oil prices to maximize net present...