Results 21 to 30 of about 183,836 (261)

Pricing and Hedging Index Options under Mean-Variance Criteria in Incomplete Markets

open access: yesComputation, 2023
This paper studies the portfolio selection problem where tradable assets are a bank account, and standard put and call options are written on the S&P 500 index in incomplete markets in which there exist bid–ask spreads and finite liquidity.
Pornnapat Yamphram   +2 more
doaj   +1 more source

PENENTUAN KONTRAK OPSI TIPE EROPA MENGGUNAKAN MODEL SIMULASI VARIANCE GAMMA (VG)

open access: yesE-Jurnal Matematika, 2023
Options are used as a hedge against stock price uncertainty brought on by unstable stock prices fluctuation. The price of an option contract can be determined using a variety of approaches, one of which is the Variance Gamma. The purpose of this study is
NI KADEK LANI PITRAYANI   +2 more
doaj   +1 more source

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

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   +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

Sand-Dust Image Enhancement Using Chromatic Variance Consistency and Gamma Correction-Based Dehazing

open access: yesSensors, 2022
In sand-dust environments, the low quality of images captured outdoors adversely affects many remote-based image processing and computer vision systems, because of severe color casts, low contrast, and poor visibility of sand-dust images.
Jong-Ju Jeon, Tae-Hee Park, Il-Kyu Eom
doaj   +1 more source

The Variance Gamma Distribution [PDF]

open access: yesSignificance, 2019
Abstract Scott Nestler and Andrew Hall provide an overview of a little-known but highly flexible distribution, which can be useful for modelling share price ...
Scott Nestler, Andrew Hall
openaire   +1 more source

Efficient simulation of gamma and variance-gamma processes [PDF]

open access: yesProceedings of the 2003 International Conference on Machine Learning and Cybernetics (IEEE Cat. No.03EX693), 2004
We study algorithms for sampling discrete-time paths of a gamma process and a variance-gamma process, defined as a Brownian process with random time change obeying a gamma process. The attractive feature of the algorithms is that increments of the processes over longer time scales are assigned to the first sampling coordinates. The algorithms are based
Avramidis, Athanassios.N.   +2 more
openaire   +1 more source

SIFAT-SIFAT DAN KEJADIAN KHUSUS DISTRIBUSI GAMMA

open access: yesBarekeng, 2021
The gamma distribution is one of special continuous random variable distribution with scale parameter  and shape parameter  where  is positive real numbers.
Royke Yohanes Warella   +2 more
doaj   +1 more source

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