如果把执行价格定为将来的还债的本金加上利息不是期权费用就为0了么?另外即使把执行价格仅仅定义为本金,那么期权费用也不一定是利息啊,因为利息是事前商定的,而期权价格是根据公式可以计算出来的,因此我比较倾向于把利息和本金一起当作执行价格来看

stike price = principle + interest? misleading.

to define an option, there is one and only one stike price, while the interest is an uncertain number increasing along with the time.

it's more fair to say "the equity investors own bond to the creditor, the cost of the bond is coupon rate; in regarding to the option, they are free to buy option of these bonds given the modern corporate bond market."

to define an option, there is one and only one stike price, while the interest is an uncertain number increasing along with the time.

it's more fair to say "the equity investors own bond to the creditor, the cost of the bond is coupon rate; in regarding to the option, they are free to buy option of these bonds given the modern corporate bond market."