Barrick Gold mines and refines ore and sells pure gold in the global market. To raise finds, it sells a derivative security whose payoff is as follows Part of the security is a zero-coupon bond (which is sold at a discount and makes no interest payments) that pays a principal of $1,000 at maturity T. Goldminers also pays an additional amount that is indexed to gold's price (per ounce) at maturity, ST Payoff Conditions if ST 1350 if 1350 s ST S 1400 if 1400