是英文的~~
Suppose that the money demand function takes the form :   (M/P)d=L(i,Y)=Y/(5i)       d 是指demand
a.what is the velocity of money in this economy?
b.If inflation and nominal interest rates are constant , at what rate , if any, will velocity grow?
c.How will a permanent (one-and-for-all) increase in the level of interest rates affect the level of velocity?How will it affect the subsequent growth rate of velocity?
谢谢！！