2011
DOI: 10.1016/j.physleta.2011.06.051
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Jump diffusion models and the evolution of financial prices

Abstract: We analyze a stochastic model to describe the evolution of financial prices. We consider the stochastic term as a sum of the Wiener noise and a jump process. We point to the effects of the jumps on the return time evolution, a central concern of the econophysics literature. The presence of jumps suggests that the process can be described by an infinitely divisible characteristic function belonging to the De Finetti class. We then extend the De Finetti functions to a generalized nonlinear model and show the mod… Show more

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Cited by 5 publications
(3 citation statements)
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“…Thus, Eq. (3) belongs to the De Finetti class of infinitely divisible characteristic functions [14].…”
Section: Time-homogeneous Ornstein-uhlenbeck Processmentioning
confidence: 99%
See 2 more Smart Citations
“…Thus, Eq. (3) belongs to the De Finetti class of infinitely divisible characteristic functions [14].…”
Section: Time-homogeneous Ornstein-uhlenbeck Processmentioning
confidence: 99%
“…17, we may infer that the rand-dollar rate returns are not linear or time-homogeneous because its cumulants do not reach an equilibrium state as t increases. If linearity assumption does not hold for these data, the type of diffusion equation may not be appropriate [15,16].…”
Section: Applicationsmentioning
confidence: 99%
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