"Suppose that the corporation with a 10-year coupon bond that pays a 5% semi-annual coupon bond (the price of $110, a du

[answerhappygod]

"Suppose that the corporation with a 10-year coupon bond that
pays a 5% semi-annual coupon bond (the price of $110, a duration of
8, and a convexity of 70) is worried about the losses that its
portfolio may suffer from an upward parellel shift in the term
structure of interest rates. Its CFO was considering a
duration-convexity hedging strategy by using (1) a 1-year zero
coupon bond (the price of $90) and (2) a 10-year zero coupon bond
(the price of $60). To hedge the portfolio, the corporation must
short ________ units of the 1-year zero coupon bond, and ________
units of the 10-year zero coupon bond."