motor car project The bank maintained its main interest rate by 0.0 percentage point and raised its 2017 GDP growth forecast by 2 percentage points to 2.4 percentage points. When bank of America merrill lynch survey of investors results also showed that as many as 8% of the respondents expected net amount, 2018 of the yield curve will become flat, it is up to the number of records since June last year. Propagating the value proposition of the public chain to new participants - redefining "profit" to cover economic and social value. Modern economy, the interest rate as the price of money, not only restricted by many factors in the economic and social, and changes in interest rates to have a great impact on the economy as a whole, as a result, modern economists are studying the interest rate decision problem, pay special attention to the relationship between the variables and the balance of the economy as a whole, the interest rate decision theory has experienced the classical interest rate theory, Keynes's interest theory, interest rate in loanable funds theory and is-lm analysis as well as the contemporary evolution of dynamic interest rate model, the development process. An open market enables enterprises to compete and cooperate with each other on a larger scale and at a higher level to promote economic development.