arts non profit jobs 3. First sex. Plan is the premise of other management work, plan before and after action. Do foreign exchange business plan has a lot of principles and rules, but if it comes down to the simplest elements, it is nothing but make a entry and exit the starting point for any deal, at the end of the deal is profitable. Once the starting point is established, the change in the price level can be attributed to rising, falling or maintaining the original state. A trading plan must draw up a blueprint for action to enter the actual trading market. Once the price level has occurred to any of the three changes mentioned above, the trader can make the decision to buy or sell according to the plan. Famous British economist hicks and others argue that the above theory did not consider the factor of income, and therefore unable to determine the level of interest rates, in 1937, and puts forward the is-lm model on the basis of general equilibrium theory. It establishes a theory of interest rates and income at the same time that the four factors of savings and investment, money supply and monetary demand interact. At the same time, because of the surplus value for money is the commodity that only appeared well after the completion of the production process, it is further considered capitalists in order to produce goods all prepaid capital input by the capital employed are not included in the cost price (including those fixed capital). Not only that, the flow of goods from the production process into the process, in order to engage in sales activities to additional capital (including pure circulation costs), therefore, the residual value is considered to be not only all capital in advance in the field of production, but also be regarded as include all of the advance in the field of production and circulation of capital brought together. In the face of market failure, coase has given the opposite answer: external-utility problems can be solved by explicitly using the market, without government intervention. And zhang wuchang is more absolute, he said that there is no so-called external utility, there is only unclear property rights. Anyway, coase brought revolutionary innovation to market concepts. He made it clear that the key to the market was not the "price mechanism" of impersonal machinery, but the power of participants in economic activity.