【简答题】David Zhao, a fixed-income yst, determines that a 6.8% coupon option-free bond, with 7 years to maturity, would fall 2.5% in price if market interest rate rise by 0.5%. If market interest rates fa...
【单选题】The famous observation that households and firms interacting in markets act as if they are guided by an “invisible hand” that leads them to desirable market outcomes comes from whose 1776 book?