Point 4: look at the guarantee. If the high yield p2p wealth management products of the platform are guaranteed, and the strength of the guarantee company, investors need to study it clearly. Western economists further point out that the main factor that leads to the difference between trading costs in markets and businesses is the incompleteness of information. Because of the incompleteness of the information. Any party of a contract will be trying to collect, information and access to what they didn't have to monitor each other's behavior, and try to constraints, and afterwards to punish in advance of each other's default behavior and so on. All these practices produce transaction costs. As a result of these practices in the market and the enterprise can take different forms, so the corresponding transaction costs is not the same, in particular, under the condition of asymmetric information, in the process of market transactions, transaction cost, as a result of these practices are often very high. Therefore, through the organizational form of enterprises, some market transactions can be internalized to eliminate or reduce the high transaction costs generated by some market exchanges. ECB President Mario draghi said at a press conference following the central bank's board meeting that important changes had taken place in the resumption of negotiations. Interest rates have a very important impact on the exchange rate, which is the most important factor affecting the exchange rate. We know that the exchange rate is the relative price between the two countries' currencies. Like other commodity pricing mechanisms, it is determined by the supply and demand relationship in the foreign exchange market. Foreign exchange is a kind of financial asset, which people hold because it can bring the benefits of capital. So we see Italian Banks being attacked for dealing with the country's banking crisis. We heard the bank of England's criticism that it was worried about the macroeconomic impact of brexit. We believe that US President Donald Trump intends to include the Federal Reserve in the political commission. Lindsay Judge, a policy analyst at the foundation, said many employers were using loopholes in the law that allow agency workers to sign away their right to equal pay.