NO.PZ2018062003000142
问题如下：
If Centre Bank wants to decrease money multiplier, it will:
选项：
A. decrease reserve requirement.
B. increase reserve requirement.
C. remains reserve requirement.
解释：
B is correct.
The money mutiplier is inversely related to the reserve requirement.
考点： money mutiplier
解析： money mutiplier与reserve requirement之间是倒数关系。所以降低money mutiplier意味着reserve requirement的提高。
请问这里的公式是哪一个
