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The Variance Gamma++ process and applications to energy markets [PDF]

open access: yesApplied Stochastic Models in Business and Industry, 2022
AbstractThe purpose of this article is to introduce a new Lévy process, termed the Variance Gamma++ process, to model the dynamics of assets in illiquid markets. Such a process has the mathematical tractability of the Variance Gamma process and is obtained by applying the self‐decomposability of the gamma law.
Matteo Gardini   +2 more
core   +8 more sources

Variance Gamma (nonlocal) equations

open access: yesModern Stochastics: Theory and Applications, 2023
Some equations are provided for the Variance Gamma process using the definition other than that based on a time-changed Brownian motion. A new nonlocal equation is obtained involving generalized Weyl derivatives, which is true even in the drifted case ...
Fausto Colantoni
doaj   +2 more sources

Prognostic and Classification of Dynamic Degradation in a Mechanical System Using Variance Gamma Process [PDF]

open access: yesMathematics, 2021
Recently, maintaining a complex mechanical system at the appropriate times is considered a significant task for reliability engineers and researchers. Moreover, the development of advanced mechanical systems and the dynamics of the operating environments
Marwa Belhaj Salem   +2 more
doaj   +4 more sources

Special greeks of a variance-gamma driven vasicek model

open access: yesScientific African, 2023
Abrupt happenings in financial markets have resulted to the need to adopt Lévy processes such as a variance gamma process in modelling financial derivatives since it has the ability to capture jumps that occur in such scenario.
Adaobi M. Udoye, Lukman S. Akinola
doaj   +2 more sources

Extension of Short Rate Model Under a Lévy Process

open access: yesFountain Journal of Natural and Applied Sciences (FUJNAS), 2023
A lot of abnormalities occur in real-life scenarios, thus leading to some difficulties in modelling such scenarios without a deeper understanding of certain aspects of Lévy processes.
Dr A. M. Udoye
doaj   +3 more sources

Assets performance evaluation with the use of returns distribution characteristics [PDF]

open access: yesتصمیم گیری و تحقیق در عملیات, 2023
Purpose: Portfolio optimization is a selection of assets with the lowest risk and highest return. Asset performance evaluation is a useful way to choose assets and construct a profitable portfolio.
Seyedeh Masoumeh Mirsadeghpour Zoghi   +4 more
doaj   +1 more source

Deep variance gamma processes

open access: yesStat, 2023
Lévy processes are useful tools for analysis and modeling of jump‐diffusion processes. Such processes are commonly used in the financial and physical sciences. One approach to building new Lévy processes is through subordination, or a random time change.
Caitlin M. Berry, William Kleiber
openaire   +1 more source

Residue Sum Formula for Pricing Options under the Variance Gamma Model

open access: yesMathematics, 2021
We present and prove a triple sum series formula for the European call option price in a market model where the underlying asset price is driven by a Variance Gamma process.
Pedro Febrer, João Guerra
doaj   +1 more source

Design of a Pure Endowment Life Insurance Contract Based on Optimal Stochastic Control [PDF]

open access: yesMathematics and Modeling in Finance, 2022
In this paper, we design a pure-endowment insurance contract and obtain the optimal strategy and consumption for a policyholder with CRRA utility function. In this contract, premiums are received from the policyholder at certain times.
Saman Vahabi, Amir Payandeh Najafabadi
doaj   +1 more source

A Bivariate Beta from Gamma Ratios for Determining a Potential Variance Change Point: Inspired from a Process Control Scenario

open access: yesMathematical and Computational Applications, 2022
Within statistical process control (SPC), normality is often assumed as the underlying probabilistic generator where the process variance is assumed equal for all rational subgroups.
Schalk W. Human   +3 more
doaj   +1 more source

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