GENERAL DUALITY FOR PERPETUAL AMERICAN OPTIONS
2008 ◽
Vol 11
(06)
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pp. 545-566
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Keyword(s):
In this paper, we investigate the generalization of the Call-Put duality equality obtained in Alfonsi and Jourdain (preprint, 2006, available at ) for perpetual American options when the Call-Put payoff (y - x)+ is replaced by ϕ(x,y). It turns out that the duality still holds under monotonicity and concavity assumptions on ϕ. The specific analytical form of the Call-Put payoff only makes calculations easier but is not crucial unlike in the derivation of the Call-Put duality equality for European options. Last, we give some examples for which the optimal strategy is known explicitly.
2017 ◽
Vol 20
(06)
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pp. 1750036
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2021 ◽
2002 ◽
Vol 05
(05)
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pp. 497-514
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Keyword(s):
1996 ◽
Vol 54
◽
pp. 724-725
Keyword(s):
1986 ◽
Vol 25
(04)
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pp. 207-214
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Keyword(s):
Keyword(s):