With the development of p2p, many people in the market have been hurt. Many people in the market have begun to reject the p2p in particular, but they are also conflicted, and are afraid and rejected by the high yield. In fact, high-yielding p2p wealth management products are not from high risk, and they are not unreliable. However, after all, financial investment is risky. For investors, how to find safe and reliable channels to ensure their high yield is the most important issue. Before that, what is the nature of the enterprise itself is an issue that has been ignored by traditional microeconomic theory. In the traditional microeconomic theory, is the manufacturer's production process as a "black box", namely enterprise is abstracted into a from input to output a "black box" of the pursuit of profit maximization. In finance, investing means buying securities or other financial or paper assets. Valuation is a way to estimate the price of a potential investment. The types of investments include real estate, securities investment, gold, foreign currency, insurance or bonds or stamps. These investments may then provide future cash flows that may increase or decrease their value. The investment in the stock market is carried out by securities investors. This sharp reversal contrasts with the flattening of the previous yield curve. Finally, a spokeswoman for the tax department confirmed the news, saying it had collected information through the bitcoin exchange and its investors and sources of information to tax the relevant actions.