define a non profit organization Compared with the Internet boom that preceded the information age, the blockchain era is almost as hot as it was in 1998, and the cryptocurrency world is inviting mainstream participation. First of all, the earnings of the fund in 2017 are in an uncertain environment. The first half of the market is in a period of "cash shortage". Towards the end of the year, the central bank started to fight for the "money shortage", so monetary policy eased and interbank money market rates fell. As a result, yu 'ebao's yields suddenly fell below the 4 per cent mark. In a broad sense, interest rates are not limited to bank interest itself, but also to bond markets, and even to share dividends, another way of stating dividends. In fact, in the United States, the proportion of direct financing is far greater than the indirect financing, corporate bonds, debt-financed and publicly traded shares is a very important means of financing, at this time all can use the concept of interest rates for analysis. For many, the first benefit of entering the blockchain and cryptocurrency world could be economic gain.