Superposition of COGARCH processes

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Anita Behme - , Technische Universität München (Autor:in)
  • Carsten Chong - (Autor:in)
  • C. Klüppelberg - (Autor:in)

Abstract

We suggest three superpositions of COGARCH (sup-CO-GARCH) volatility processes driven by Lévy processes or Lévy bases. We investigate second-order properties, jump behaviour, and prove that they exhibit Pareto-like tails. Corresponding price processes are defined and studied. We find that the sup-CO-GARCH models allow for more flexible autocovariance structures than the COGARCH. Moreover, in contrast to most financial volatility models, the sup-CO-GARCH processes do not exhibit a deterministic relationship between price and volatility jumps. Furthermore, in one sup-CO-GARCH model not all volatility jumps entail a price jump, while in another sup-CO-GARCH model not all price jumps necessarily lead to volatility jumps.

Details

OriginalspracheEnglisch
Seiten (von - bis)1426-1469
FachzeitschriftStochastic processes and their applications
Jahrgang125
Ausgabenummer4
PublikationsstatusVeröffentlicht - 2015
Peer-Review-StatusJa
Extern publiziertJa

Externe IDs

Scopus 85028147570

Schlagworte

Bibliotheksschlagworte