Optimal exercise price of American options near expiry

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The American put and European options near expiry, under Lévy processes

We derive explicit formulas for time decay, θ, for the European call and put options at expiry, and use them to calculate analytical approximations to the price of the American put and early exercise boundary near expiry. We show that for many families of non-Gaussian processes used in empirical studies of financial markets, the early exercise boundary for the American put without dividends is ...

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ژورنال

عنوان ژورنال: ANZIAM Journal

سال: 2010

ISSN: 1445-8810

DOI: 10.21914/anziamj.v51i0.2302