Kardaras, Constantinos ORCID: 0000-0001-6903-4506, Kreher, Dörte and Nikeghbali, Ashkan
(2015)
Strict local martingales and bubbles.
Annals of Applied Probability, 25 (4).
pp. 1827-1867.
ISSN 1050-5164
Abstract
This paper deals with asset price bubbles modeled by strict local martingales. With any strict local martingale, one can associate a new measure, which is studied in detail in the first part of the paper. In the second part, we determine the “default term” apparent in risk-neutral option prices if the underlying stock exhibits a bubble modeled by a strict local martingale. Results for certain path dependent options and last passage time formulas are given.
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