The specific reasons are as follows:
The number of interest payment periods is the number of interest payments in a period of time, which is reciprocal to the interest payment period.
According to the different repayment methods, bonds can be divided into: one-time maturity bonds: one-time maturity bonds refer to bonds in which the issuing company repays all the principal of the bonds at one time on the maturity date of the bonds; Installment bonds: Installment bonds can be repaid in installments, which can reduce the financial burden of the issuing company for centralized repayment of principal.