Extended data:
Interest is the use fee of money in a certain period of time, and it refers to the reward that money holders (creditors) get from borrowers (debtors) for lending money or monetary capital. Including deposit interest, loan interest and interest generated by various bonds.
Under the capitalist system, the source of interest is the surplus value created by hired workers. The essence of interest is a special transformation form of surplus value and a part of profit. Money other than the principal obtained from deposits and loans (different from' principal') is called interest.
Abstract interest point refers to the value-added amount brought by monetary funds injected into the real economy and returned. In a less abstract sense, interest generally refers to the remuneration paid by the borrower (debtor) to the lender (creditor) for using the borrowed currency or capital. Also known as the symmetry of sub-fund and parent fund (principal). The calculation formula of interest is: interest = principal × interest rate × deposit period (i.e. time).
Interest is the reward that the fund owner gets for lending the fund, which comes from a part of the profits that the producer makes by using the fund to play its operational functions. Refers to the value-added amount brought by monetary funds injected and returned to the real economy. The calculation formula is: interest = principal × interest rate × deposit period × 100%.
The annual interest rate refers to the deposit interest rate for one year. The so-called interest rate is the abbreviation of "interest rate", which refers to the ratio of interest amount to deposit principal or loan principal in a certain period of time. Usually divided into annual interest rate, monthly interest rate and daily interest rate. The annual interest rate is expressed as a percentage of the principal, the monthly interest rate as a percentage, and the daily interest rate as a percentage.
When the economic development is in the growth stage, the investment opportunities of banks increase, the demand in loanable funds increases and the interest rate rises; On the other hand, when the economy is in a downturn and the society is in a depression, banks' willingness to invest will decrease, so will the demand for loanable funds, and the market interest rate will generally be lower.
Generally speaking, when the central bank expands the money supply, the total supply in loanable funds will increase, the supply exceeds demand, and the natural interest rate will decrease accordingly; On the contrary, the central bank implements a tight monetary policy, reducing the money supply, so that loanable funds's demand exceeds supply, and interest rates will rise accordingly.