1- Because you did it yourself. Remember "So, It did not occur to you that in case of interest you could also use as strike the forward price?" My man... 2- I didn't have to. You set a no IR world. Remember ? Please don't be so angry. There is nothing to win.
You stated in an earlier post that "knowledge HAS to be shared". 1. Your answers show that either it did not occur to you, or you do not live by your own rule, or both. 2. "I didn't have to" is inconsistent with "knowledge HAS to be shared".
http://www.elitetrader.com/vb/showthread.php?s=&threadid=201844&perpage=6&pagenumber=7 You got be kidding me...
1- Both for sure.That's why I posted the derivation of your "patented" trick and show how everybody could. 2- It sounds as if you found no escape and tried to invert the situation. Are you for real ? You're angry, don't you?
I thought your so called "trick" was based on BSM formula? Are you saying your trick came before BSM?
Because you have not specified any assumptions... For example, if in this hypothetical market of yours all assets are worth either 0 or 42, I have a great method of pricing options on these assets. The beauty of BSM is that it's well-specified and internally consistent.
You are asking good questions! What/who made you think that? Is the derivations posted by Master? Do you mean before as in time of publication, or do you mean something else such as "independent of BSM", "without the need of BSM", etc, etc?