Thanks, George. The problem with real-world trading systems is that they tend to relate to a specific type of commodity. That makes them broadly unusable as the basis of a generic trade system. The share market, for example, has limited applicability. What’s needed is to go back to the roots of trade – wholesaling and retailing. What happens to the wealth generated through such transactions can then be employed for investment, which bears greater resemblance to those other forms of trade; ultimately, it comes down to the ownership of and distribution of profits from, an organization that trades (usually in specific commodities).