Results 81 to 90 of about 115,543 (153)

Pricing Derivatives on Two Lé}vy-driven Stocks [PDF]

open access: yes
The aim of this work is to study the pricing problem for derivatives depending on two stocks driven by a bidimensional Lévy process. The main idea is to apply Girsanov's Theorem for Lévy processes, in order to reduce the posed problem to the pricing of a
Ernesto Mordecki, José Fajardo
core  

Levy Noise Affects Ornstein–Uhlenbeck Memory

open access: yesEntropy
This paper investigates the memory of the Ornstein–Uhlenbeck process (OUP) via three ratios of the OUP increments: signal-to-noise, noise-to-noise, and tail-to-tail. Intuition suggests the following points: (1) changing the noise that drives the OUP from
Iddo Eliazar
doaj   +1 more source

A Multivariate Time-Changed Lévy Model for Financial Applications [PDF]

open access: yes
The purpose of this paper is to define a bivariate L´evy process by subordination of a Brownian motion. In particular we investigate a generalization of the bivariate Variance Gamma process proposed in Luciano and Schoutens [8] as a price process.
Patrizia Semeraro
core  

Symmetry and Time Changed Brownian Motions [PDF]

open access: yes
In this paper we examine which Brownian Subordination with drift exhibits the symmetry property introduced by Fajardo and Mordecki (2006b). We obtain that when the subordination results in a Lévy process, a necessary and sufficient condition for the ...
Ernesto Mordecki, José Fajardo
core  

Asymptotic equivalence of jumps Lévy processes and their discrete counterpart

open access: yes, 2013
Shorter version focusing on the statistical analysis of the Lévy measure. A new example has been added.We establish the global asymptotic equivalence between a pure jumps Lévy process $\{X_t\}$ on the time interval $[0,T]$ with unknown Lévy measure $\nu$
Etoré, Pierre   +2 more
core   +1 more source

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