(a) List the assumptions of the Black-Scholes model. Consider a derivative whose payoff at expiry time...
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(a) List the assumptions of the Black-Scholes model. Consider a derivative whose payoff at expiry time T' is given by Cr(ST) = max (S²-K, 0), where K > 0 is the strike price and ST is the price of the underlying share at expiry. This type of derivative is known as a power option, since the payoff depends on S, to the power of some fixed number (2 in this case). Derivatives of this type have to be cash-settled. (b) Carefully sketch the graph of Cr as a function of St. (c) We showed in the lectures that the Black-Scholes price Vo at time 0 of a vanilla European option with payoff function Vr(ST) is given by √27 Vr (So exp[(r = o ²/2)T + o√T z]) e-z²/²dz, assuming that the underlying share pays no dividends during the lifetime of the option. The various symbols here have their usual meanings, and you may assume that So, and T all are strictly positive. By using this result, or otherwise, prove that the Black-Scholes price Co at time 0 of the power option described above is given by Co= Sexp [(r + o²)T] (h+) - KeT(h_), where Hint: For full marks in parts (d), (e) and (f), your final answers should each be written in the most compact form possible. h+ log(So/VK) + (r+ 30²/2)T OVT h = h, -20√T, and Þ(r) is the cumulative distribution function of the standard normal distribution. E (d) By (partially) differentiating the expression for Co with respect to So, find the formula for the delta A of this power option. (e) By differentiating once again, find the formula for the gamma I. (f) Finally, find the formula for the theta , defined here as E aco ƏT E [ E [ (a) List the assumptions of the Black-Scholes model. Consider a derivative whose payoff at expiry time T' is given by Cr(ST) = max (S²-K, 0), where K > 0 is the strike price and ST is the price of the underlying share at expiry. This type of derivative is known as a power option, since the payoff depends on S, to the power of some fixed number (2 in this case). Derivatives of this type have to be cash-settled. (b) Carefully sketch the graph of Cr as a function of St. (c) We showed in the lectures that the Black-Scholes price Vo at time 0 of a vanilla European option with payoff function Vr(ST) is given by √27 Vr (So exp[(r = o ²/2)T + o√T z]) e-z²/²dz, assuming that the underlying share pays no dividends during the lifetime of the option. The various symbols here have their usual meanings, and you may assume that So, and T all are strictly positive. By using this result, or otherwise, prove that the Black-Scholes price Co at time 0 of the power option described above is given by Co= Sexp [(r + o²)T] (h+) - KeT(h_), where Hint: For full marks in parts (d), (e) and (f), your final answers should each be written in the most compact form possible. h+ log(So/VK) + (r+ 30²/2)T OVT h = h, -20√T, and Þ(r) is the cumulative distribution function of the standard normal distribution. E (d) By (partially) differentiating the expression for Co with respect to So, find the formula for the delta A of this power option. (e) By differentiating once again, find the formula for the gamma I. (f) Finally, find the formula for the theta , defined here as E aco ƏT E [ E [
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Income statement Particulars 2017 2016 Sales 5834400 3432000 Cost of goods sold 4980000 2864000 Depreciation 116960 18900 Other expenses 720000 340000 Total expenses 5816960 3222900 Profitloss before ... View the full answer
Related Book For
Business Statistics
ISBN: 978-0321925831
3rd edition
Authors: Norean Sharpe, Richard Veaux, Paul Velleman
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