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The article investigates how sensitive different dynamic and static hedge strategies for barrier options are to model risk. It is found that using plain‐vanilla options to hedge offers considerable improvements over usual Δ hedges. Further, it is shown that the hedge portfolios involving...
Persistent link: https://www.econbiz.de/10011197309
A new method for static hedging of barrier options under general asset dynamics is introduced. The method unifies previous approaches and nests their extensions. Using a finite set of hedge instruments the method is directly implementable and it is shown how to operationalize the hedge in a...
Persistent link: https://www.econbiz.de/10005750007
We review how reflection results can be used to give simple proofs of price formulas and derivations of static hedge portfolios for barrier and lookback options in the Black-Scholes model.
Persistent link: https://www.econbiz.de/10005543580
In the basic mean/variance framework, a stock's weight in effcient portfolios goes up if its expected rate of return goes up. In more complicated, realistic portfolio choice problems, surprising effects can occur.
Persistent link: https://www.econbiz.de/10005749999
In this paper an investigation of the pricing of callable annuities with interest-only (I-O) optionality is conducted. First the I-O optionality feature of callable annuities is introduced. Next an algorithm for pricing callable annuities with I-O optionality using the finite difference...
Persistent link: https://www.econbiz.de/10005644713
Persistent link: https://www.econbiz.de/10005709832
We conduct an empirical evaluation of a static super-replicating hedge of barrier options. The hedge is robust to uncertainty about the future skew. Using almost seven years of current data on the DAX, we evaluate the performance of the hedge and compare it with those of both a dynamic and a...
Persistent link: https://www.econbiz.de/10009214967
In this paper locally risk-minimizing hedge strategies for European-style contingent claims are derived and tested for a general class of stochastic volatility models. These strategies are as easy to implement as ordinary delta hedges, yet in realistic settings they produce markedly lower hedge...
Persistent link: https://www.econbiz.de/10005534207
We use a reflection result to give simple proofs of (well-known) valuation formulas and static hedge portfolio constructions for zero-rebate single-barrier options in the Black-Scholes model. We then illustrate how to extend the ideas to other model types giving (at least) easy-to-program...
Persistent link: https://www.econbiz.de/10005495754
The problem of dynamic portfolio choice with transaction costs is often addressed by constructing a Markov Chain approximation of the continuous time price processes. Using this approximation, we present an efficient numerical method to determine optimal portfolio strategies under time- and...
Persistent link: https://www.econbiz.de/10011209365