Diversification of securities, the establishment of a scientific and effective portfolio of securities; It doesn't seem to be too much of a market to really focus on learning or learning about the importance of learning. More and more, I feel that learning is to keep to the only way to do it for a long time in the market, continuous learning can bring something new to you constantly, in a sense, the ability of learning will be able to represent your trading ability and analysis ability. Central bankers' tasks are limited to keeping inflation stable and independence easier to maintain. Given this narrow mandate, the allocation of central bank decisions is limited. Moreover, it is easier to explain how the central bank's policy tools are linked to its political mandate. The market can indeed be described as a laissez-faire pricing mechanism. However, this price mechanism does not operate in a vacuum, and does not work effectively in any social system. The basic premise of the efficient operation of the price mechanism is the implicit assumption of Smith: to recognize individual "lusts" and to clear and protect individual property rights. Clear and guaranteed personal property is the basic premise of market existence. It is necessary to recognize the personal "lusts" and to ensure that individual property rights are supported by the corresponding institutions, which are not in our society. - computing and network business revenue of $3.2 billion in the first quarter of the year, rose 13%, compared to the same period last year doubled, mainly by the server memory content increase. Of the companies surveyed, 37 percent said sales rose in December, while 17 percent said sales were down. The resulting balance is + 20% below the retailer's forecast of + 30%, and below + 26% in November.