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ON ROBUSTNESS OF THE BLACK–SCHOLES PARTIAL DIFFERENTIAL EQUATION MODEL
https://doi.org/10.1142/S0219024916500138Cited by:0 (Source: Crossref)
Abstract
When the discretely adjusted option hedges are constructed by the continuous-time Black–Scholes delta, then the hedging errors appear. The first objective of the paper is to consider a discrete-time adjusted delta, such that the hedging error can be reduced. Consequently, a partial differential equation for option valuation associated with the problem is derived and solved.
The second objective is to compare the obtained results with the results given by the Black–Scholes formula. The obtained option values may be higher than those given by the Black–Scholes formula, however, unless the option is near expiry, the difference is relatively small.
