There are two main factors to control money supply: money multiplier and monetary base.
货币供给量是否可控的决定因素有两个:一个是货币乘数,另一个是基础货币。
参考来源 - 我国货币乘数及其影响因素的实证研究 （研究生论文）
货币基础
货币基数
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Monetary base
abstract:In economics, the monetary base (also base money, money base, high-powered money, reserve money, or, in the UK, narrow money) in a country is defined as the portion of the commercial banks' reserves that are maintained in accounts with their central bank plus the total currency circulating in the public (which includes the currency, also known as vault cash, that is physically held in the banks' vault).