501c non profit The evolution of human beings has been through the process of inorganic small molecule, organic small molecule, organic polymer, multi-molecular system, primitive life, low animal, high animal and so on. The value phenomenon is accompanied by the development of human beings, and it is important to understand the origin of value in order to understand the value in a comprehensive and profound way, and to eliminate the many controversies existing in the theoretical circle of value. Humans evolved from lower animals, and the value phenomenon is not born, nor is it produced overnight. It has its own origins and evolves with the evolution of human beings. The fund's fourth consultation underlines the enormous uncertainty facing Britain in the ambitious task of negotiating an exit from the eu. Not long ago, U.S. debt long positions were near historic highs. The CFTC's holdings report showed that as of Dec. 12, the 30-year U.S. debt had a net gain of 10.091 million, the highest level since last July. Mr Trump also abandoned his trade base, where he made rhetoric rather than concrete action. Yes, he abandoned the trans-pacific partnership (TPP), but Hillary Clinton would do the same. He had thought about dropping the north American free trade law (Nafta), but that could be just a negotiating tactic. He threatened to impose a 50 per cent tariff on goods from China, Mexico and other us trading partners, but failed to do so. The proposal for border adjustment taxes was almost forgotten. The accounting income maintains the financial capital preservation, namely, the monetary value that only requires the owner to invest is not eroded, the enterprise income exceeds the input value part is the accounting income. Accounting focuses on reporting financial results. The economic benefits insist on physical capital preservation, which can only be confirmed when the actual production capacity of the owner is saved. It is believed that only by maintaining the actual production capacity of the enterprise can the enterprise reproduce smoothly. Physical capital preservation is more meaningful than the income of financial capital preservation, but it is difficult to measure. Commodity market refers to a fixed location, facilities, there are several operators admission management, tax respectively, the market management is responsible for the management, property management, centralized, publicly traded for tangible commodity trading places. This concept has three meanings: first, commodity market is a commodity trading place composed of transaction subject, transaction object, transaction carrier and other elements. Second, the commodity market is the place to provide services, which is a trading venue for producers and consumers to provide a certain quality of service. Third, the commodity market is the place to provide sensory experience. Therefore, commodity market is the product of commodity economy development to a certain stage.