Exercise 15.9 In the Vasicek model, the spot-rate process follows the SDE (15.26) under Q. Using (15.33),
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Exercise 15.9 In the Vasicek model, the spot-rate process follows the SDE
(15.26) under Q. Using (15.33), obtain the SDE of r(t) under the forwardneutral measure QT , and solve it to derive the distribution of log vT (T, τ ).
Calculate the expectation EQT t [{vT (T, τ ) − K}+] directly to derive the call option premium (15.35).
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Stochastic Processes With Applications To Finance
ISBN: 9781439884829
2nd Edition
Authors: Masaaki Kijima
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