Artikel

Time-dynamic evaluations under non-monotone information generated by marked point processes

The information dynamics in finance and insurance applications is usually modelled by a filtration. This paper looks at situations where information restrictions apply so that the information dynamics may become non-monotone. A fundamental tool for calculating and managing risks in finance and insurance are martingale representations. We present a general theory that extends classical martingale representations to non-monotone information generated by marked point processes. The central idea is to focus only on those properties that martingales and compensators show on infinitesimally short intervals. While classical martingale representations describe innovations only, our representations have an additional symmetric counterpart that quantifies the effect of information loss. We exemplify the results with examples from life insurance and credit risk.

Language
Englisch

Bibliographic citation
Journal: Finance and Stochastics ; ISSN: 1432-1122 ; Volume: 25 ; Year: 2021 ; Issue: 3 ; Pages: 563-596 ; Berlin, Heidelberg: Springer

Classification
Wirtschaft
Behavioral Finance: General‡
Mathematical Methods
Asset Pricing; Trading Volume; Bond Interest Rates
Investment Banking; Venture Capital; Brokerage; Ratings and Ratings Agencies
Subject
Credit risk modelling
Life insurance modelling
Information restrictions
Optional projections
Infinitesimal martingale representations

Event
Geistige Schöpfung
(who)
Christiansen, Marcus C.
Event
Veröffentlichung
(who)
Springer
(where)
Berlin, Heidelberg
(when)
2021

DOI
doi:10.1007/s00780-021-00456-5
Last update
10.03.2025, 11:44 AM CET

Data provider

This object is provided by:
ZBW - Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft. If you have any questions about the object, please contact the data provider.

Object type

  • Artikel

Associated

  • Christiansen, Marcus C.
  • Springer

Time of origin

  • 2021

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