[lorinda]

If we push less than half of the time, we cannot be favorite against someone who copies our strategy

I believe that the above means that the bank can get away with calling at least 50% of the time.

Edit: I also feel that there are some dodgy concepts in what I have tried to show so far. I think I've got as far as I dare, and I'm not even sure these simple facts are right, and that's before even factoring in chips properly.

Maybe leaving up this route of thinking will help someone else attack the problem without computing it.


Lori