根据这个的解释:
1、protective put + forward contract = fiduciary call = protective put + asset
2、forward contract = long put + long risk-free bond + long forward contract
3、fiduciary call = long call + long risk-free bond
4、asset = long put + long asset
再根据视频中的定义:
a、fiduciary call = long call + long risk-free bond
b、protective put = long put + long stock
我的问题:
A、如何从a、b推导出1234?
B、1中和4中左边的asset是risk-free asset么?
C、4中右边的asset是有风险的asset么?