gross profit method example There were two opposing views of development in the 19th century. A push performance degradation is based on the second law of thermodynamics system, it argues that, due to the dissipation of energy, the world tends to be weak, the universe tends to "heat death", the structure of the retreat, disorder tend to the maximum, the whole world over time and the process of dying; Another is based on Darwin's theory of evolution of the evolution of the concept system, it points out that social evolution is the result of the increasing division of species, the evolution and increased, structure complex and orderly, and constantly reinforced by functional evolution, all nature and human society are to develop more advanced, more orderly organization structure. First of all, it costs transaction cost for the manufacturer to purchase intermediate products in the market. It includes the cost of seeking suitable suppliers, signing contracts and supervising contract execution. If the manufacturer can produce some intermediate products within the enterprise itself, it can eliminate or reduce some transaction costs, and can better guarantee the quality of the products. Second, if the manufacturers need is a special type of specialized equipment, the supplier does not generally willing to specialize in only a buyer of the product of the investment and production, because this kind of proprietary investment risk is bigger. Therefore, vendors that need this specialized device need to solve the problem of specialized devices within the enterprise. In the end, the manufacturers hire employees with specialized skills, such as specialized product design, cost management, and quality control, and establish long-term contractual relationships with them. This can be more beneficial than buying the corresponding services from other vendors, thereby eliminating or reducing the corresponding transaction costs. All in all, Mr Trump is like a populist in the populist outfit - a pluto-populist. But why does his base allow him to avoid pursuing policies that hurt them mainly? According to an opinion, he is betting on social conservatives and white blue-collar supporters in rural areas to nationalism and religious sentiment and antipathy towards the coast of secular elite vote, on the basis of not for their own economic interests. 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. In fact, currently not all monetary fund yields fell below 4%, there is also a part of the monetary fund yield is over 4%, according to the fund, according to data from the network every day until December 15, the top monetary fund, yield 5% or more. Republicans impact of tax legislation through congress may be particularly dangerous, for millions of middle-class and low-income families not only didn't get any good, but with the passage of time gradually cancel the income tax cuts. In addition, the republican plan would repeal Obama's personal mandate. According to the nonpartisan budget office, this would result in 13 million people losing their health insurance, with premiums rising 10 percent over the next decade. Not surprisingly, a recent Quinnipiac poll found only 29 percent of americans support the republican plan.