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. Gas car ^ h h, however, interest rates are still significantly lower than in November 2015, when an average of 2.62 PC. Of course, for ordinary people, the yield is 3.9% or 4%, not much. But for yu 'e bao, which has 1.56 trillion yuan, the difference is significant. Any plan includes some elements. One of the first decisions to make is to use the money to do foreign exchange. How much money is actually used depends on a lot of considerations: the first is a trader's motivation, and if it's just to try or play it, it's better to have less money. The other is the enterprise of the trader, who is willing to take much risk to make money. A related factor is the age of the trader, because it involves his family, health, seniority, and his family's attitude to his speculation. These are not insignificant factors. In summary, the most basic point is that traders should not risk the loss of a potential loss commensurate with their importance. The selection and evaluation of transactions. Engaging in foreign exchange investment, one must choose a profitable trading method. Here are some factors to consider in trading options. "Manufacturing companies with complex and lengthy international supply chains, such as the automotive industry, could also face significant challenges. These developments could also have a significant impact on productivity growth. "