點解聯儲局將個RRR減到零? March 16, 2020 by Cloud RRR,即係Required Reserve Ratio(法定儲備金比率)。聯儲局係星期日將美國嘅RRR由10%降至零,即係唔再要求銀行持有一定嘅儲備水平。點解咁嘅?