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A system of quadratic BSDEs arising in a price impact model

Abstract:

We consider a financial model where the prices of risky assets are quoted by a representative market maker who takes into account an exogenous demand. We characterize these prices in terms of a system of BSDEs with quadratic growth. We show that this system admits a unique solution for every bounded demand if and only if the market maker’s risk-aversion is sufficiently small. The uniqueness is established in the natural class of solutions, without any additional norm restrictions. To the best...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1214/15-AAP1103

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Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Role:
Author
Publisher:
Institute of Mathematical Statistics Publisher's website
Journal:
Annals of Applied Probability Journal website
Volume:
26
Issue:
2
Pages:
794-817
Publication date:
2016-03-22
DOI:
ISSN:
1050-5164
Keywords:
Pubs id:
pubs:479987
UUID:
uuid:ce71cc9c-45d4-4620-a225-c2d098d0f730
Local pid:
pubs:479987
Source identifiers:
479987
Deposit date:
2017-01-20

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