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Consider a non-dividend-paying stock whose current price S(0) = S is $40. After each period, there is a 60% chance that the stock price goes

Consider a non-dividend-paying stock whose current price S(0) = S is $40. After each period, there is a 60% chance that the stock price goes up by 20%. If the stock price does not go up, then it drops by 10%. A European call option and a European put option on this stock expire on the same day in 3 months at $43 strike. Current risk-free interest rate is 6% per annum, compounded monthly. Count a month as one period.

(a) Construct a three-period binomial lattice tree to calculate the stock price after three months.

(b) Construct a three-period binomial lattice tree to calculate the current (t = 0) call option price.

(c) Construct a three-period binomial lattice tree to calculate the current (t = 0) put option price.

(d) Use Put-Call Parity to verify your answers from (c) and (d). If there is any error (discrepancy), provide your opinion on what caused the discrepancy.

SIMILAR QUESTION IS POSTED BEFORE BUT I NEED TO KNOW WHAT THE VOLATILITY IS TO FIND U AND D. THANK YOU.

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