Compression ratio The determination of this ratio mainly depends on the supply and demand relationship between the two sides and the competition. In general, the interest rate falls when the supply exceeds demand. Interest rates rise when demand exceeds supply. In addition, law, habit and so on also have a larger role. Marx's theory is of guiding significance to explain the question of interest rate decision under socialized production. Someone asked: "is value subjective or objective?" In fact, the formulation of this question does not accord with dialectical materialism. Because if that value is an objective rather than subjective, which he said is equal to the value only from the objective existence of its form, without subjective reflection of form and at the same time, the or value of the objective things can't be human understanding, that an agnostic mire; On the contrary, if think value is subjective, not objective, it is said that only a reflection of its subjective value form, rather than the form of the objective and at the same time, the value is entirely subjective since birth, not the reflection of objective things, which in turn into a mire of idealism. Some would say that the central bank's way of ensuring independence is to abandon macroprudential policies and micro-prudential policies and to take unconventional interventions in the securities market. But the crisis is an important lesson, macroeconomic and financial policies are closely connected, when the two tasks in the same institution, management by different commission, their coordination is the most effective. And because interest rates are low and uncertain, a crisis is coming, and unconventional policies will come back. Generally speaking, the interest rate varies according to the term of measurement, indicating that the method has annual interest rate, monthly interest rate and daily interest rate.