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Buffelhead’s stock price is $220 and could halve or double in each six–month period (equivalent to...

Buffelhead’s stock price is $220 and could halve or double in each six–month period (equivalent to a standard deviation of 98%). Suppose that you own a one–year American put option on Buffelhead stock with an exercise price of $220. The interest rate is 20% a year.

(a) Calculate the value of the put.
(b) Now compare the value with that of an equivalent European put option.

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