Valuing assets and extending credit against them is the preoccupation of the mortgage banker and the repo trader, who arranges trillions of dollars a day in repurchase agreements for very short-term government bonds.

对资产进行估值并为其提供信贷是抵押贷款银行家和回购交易员的当务之急，他们每天为超短期政府债券安排数万亿美元的回购协议。