what is the difference between a commodity and a security or asset 
commodities are physical products that are meant to be consumed or used in the production process assets on the other hand are goods that are not consumed through their use for instance money or a piece of machinery are used for productive purposes but persist as they are used a security is a financial instrument that is not a physical product it is a legal representation e g a contract or claim that represents certain cash flows generated from various activities such as a stock representing the future cash flows of a business 