One of the canonical models for commodity international financial markets is known as the Gibson and Schwartz (1990) model. In this model, a second variable different from the Standard Spot Price of the commodity, known as the Net Spot Convenience Yield, is modelled through an Ornstein-Uhlenbeck process. Based on this, it is fundamental for anyone who aims to work in the commodity modelling field to know the particularities of this stochastic pro...