The economic factors that affect the price of interest rate futures include economic cycle, inflation rate and economic growth rate. Item a is correct. Inflation rate not only affects the change of market interest rate, but also affects people's expectation of the trend of market interest rate. Changes in market interest rates are usually consistent with changes in inflation rates. As the inflation rate rises, the market interest rate also rises; As the inflation rate drops, the market interest rate also drops. Item b is correct. With the rapid economic growth and strong demand for social funds, the market interest rate will rise; If the economic growth rate is slow, the demand for social funds is relatively reduced, the market interest rate level drops, and the CD item is correct. So the answer to this question is ABCD.