excess reserve of bank

基本解释

On top of that, the Fed in an unprecedented gesture has started incentivizing excess bank-reserve deposits by issuing interest on these holdings, trapping liquidity.
最重要的是，美联储以前所未有的姿态已经开始通过发放利息来激励银行超额储备存款，因而形成流动资金陷阱。
In recent years, although People's Bank of China (PBC) has raised bank reserve requirements frequently to recover excess liquidity, the action cannot tackle the root cause.
近年来，中国人民银行频繁运用了上调存款准备率等诸多货币政策工具来回收过剩流动性，但流动性过剩局面仍没有根本扭转。
To mop up excess liquidity, China's central bank has raised commercial banks' reserve requirement ratio four times and raised benchmark interest rates twice since the beginning of this year.
为了解决流动性过剩的问题，今年年初，中国中央银行就已经把各商业银行的规定准备金比率提高了四倍，基准利率提高了两倍。

This conundrum may also be viewed in terms of the significance of the behavior of the monetary base, which is a combination of bank reserve deposits at the Fed (both required and excess) and currency outside the banking system.
FORBES: The Surge in the Money Supply: Meaningful or Meaningless?