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. Interest rates in different countries have different connotations. In China, interest rates typically refer to bank interest rates, further pointing to the pboc's benchmark deposit and lending rates. In the United States, mainly refers to the bond market interest rates, the fed adjustment of benchmark interest rate, also not have mandatory administrative benchmark interest rates, but through open market operations after determine its rate for overnight loans between Banks. Securities companies that need to invest in securities should apply for the corresponding investment financial accounts. Account can be used in financial investment in stocks (including A shares, B shares and H shares, etc.), bonds (including Treasury bonds, corporate bonds, corporate bonds, etc.), futures (including financial futures, such as stock index futures, foreign exchange futures, commodities such as metal futures, futures of agricultural products, etc.) and so on A series of financial instruments to invest in securities. The opening of the securities account can be handled by the business department of the securities companies and it needs to be handled within the trading day. Some securities companies such as guotai junan securities through the provinces website (e.g., guotai junan guangdong) online booking, through the appointment of account opening time is more flexible and corresponding work time, lunch time, daily can open an account on Saturday. But the DRAM and NAND semiconductor industries have gone from boom to bust in the face of rising prices and the abundance of falling prices. Will it be any different this time? Or is the need for mobile device memory and disk replacement sufficient to continue to delay the abundance until the foreseeable future? International Bank Transfers are often called global ACH. However, in fact, the actual term ACH, which means the Automated Clearing House network, is the term for electronic funds transfers only in the United States and Canada. But, functionality, international bank transfers are analogous to ACH. 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.