The level of productivity of society determines the organizational form of social basic economic units. Enterprise is the result of the development of social productive forces to a certain level, which is the product of commodity production and exchange of goods. The ECB confirmed that it plans to slow its bond-buying efforts to 30 billion euros (22 billion pounds) by the end of September 2018, from January 2018. During the depression, the rate of interest reduction, the expansion of money supply, stimulate economic development. During the expansion period, the interest rate increases, the money supply is reduced, and the economic development is suppressed. So, interest rates have a big impact on our lives. The market believes the next rate increase could happen in May 2018, as officials take action to prevent a record low unemployment and wage inflation leading to inflation. Tax on the transfer of stamp duty equity. Equity transfer are two situations: one is in Shanghai and shenzhen stock exchange trading or managed enterprise equity transfer, the transfer shall be in accordance with the securities (stocks) stamp duty tax rate of 3 ‰ securities (stocks) stamp duty. The second is the transfer of equity in an enterprise which is not traded on the Shanghai or shenzhen stock exchange or in custody. The transfer shall be held on September 18, 1991