There's no guaranteed interestrate, since the amount of money homeowners collectively pay back every month is a function of how many have refinanced and how many have defaulted.
没有保证利率，因为金额业主每个月偿还利息是根据再融资和违约的多少来定的。
2
The money demand is a function that describes the amount of money that is demanded in the economy at every interestrate level.
货币需求是一个描述经济体中在每个利率水平下的货币需求量的函数。
3
The testing result discloses that the drift and diffusion function are nonlinear, and the distribution ofinterestrate does not follow the specification in the parametric models.