Results 231 to 240 of about 183,802 (261)
Some of the next articles are maybe not open access.

The β-variance gamma model

Review of Derivatives Research, 2010
Kuznetsov (Ann Appl Prob, 2009) introduces a 10-parameter family of Levy processes for which the Wiener-Hopf factors and the distribution of the running supremum (infimum) can be determined semi-analytically. In this text we will examine the numerical performance of this so-called β-family, both in the equity world and in the field of credit risk.
Wim Schoutens, Geert Van Damme
openaire   +1 more source

Implementation of the Variance Gamma Model

SSRN Electronic Journal, 2017
The variance gamma model is a three parameter generalization of Brownian motion as a model for the dynamics of the logarithm of the stock price. Although it is possible to explicitly calculate call and put prices because of some misfortune correct formulas are not available in literature. Here I will present the correct expressions.
openaire   +1 more source

Variance-Gamma and Monte Carlo

2007
The Variance-Gamma (VG) process was introduced by Dilip B. Madan and Eugene Seneta as a model for asset returns in a paper that appeared in 1990, and subsequently used for option pricing in a 1991 paper by Dilip and Frank Milne. This paper serves as a tutorial overview of VG and Monte Carlo, including three methods for sequential simulation of the ...
openaire   +1 more source

Worldwide variance in the potential utilization of Gamma Knife radiosurgery

Journal of Neurosurgery, 2016
OBJECTIVEThe role of Gamma Knife radiosurgery (GKRS) has expanded worldwide during the past 3 decades. The authors sought to evaluate whether experienced users vary in their estimate of its potential use.METHODSSixty-six current Gamma Knife users from 24 countries responded to an electronic survey.
Travis, Hamilton, L, Dade Lunsford
openaire   +2 more sources

The Variance Gamma (V.G.) Model for Share Market Returns

The Journal of Business, 1990
A new stochastic process, termed the variance gamma process, is proposed as a model for the uncertainty underlying security prices. The unit period distribution is normal conditional on a variance that is distributed as a gamma variate. Its advantages include long tailedness, continuous-time specification, finite moments of all orders, elliptical ...
Madan, Dilip B, Seneta, Eugene
openaire   +1 more source

An empirical test of the variance gamma option pricing model

Pacific-Basin Finance Journal, 2002
Abstract In this paper, we test the three-parameter symmetric variance gamma (SVG) option pricing model and the four-parameter asymmetric variance gamma (AVG) option pricing model empirically. Prices of the Hang Seng Index call options, which are of European style, are used as the data for the empirical test.
Lee, MC, Chang, EC, Lam, K
openaire   +4 more sources

A Mixture of Variance-Gamma Factor Analyzers

2017
The mixture of factor analyzers model is extended to variance-gamma mixtures to facilitate flexible clustering of high-dimensional data. The formation of the variance-gamma distribution utilized is a special and limiting case of the generalized hyperbolic distribution.
Sharon M. McNicholas   +2 more
openaire   +1 more source

On risk measuring in the variance-gamma model

Statistics & Risk Modeling, 2017
Abstract In this paper, we discuss the problem of calculating the primary risk measures in the variance-gamma model. A portfolio of investments in a one-period setting is considered. It is supposed that the investment returns are dependent on each other.
openaire   +1 more source

Variances and covariances of order statistics from the gamma distribution

Biometrika, 1974
SUMMARY The expectations, variances and covariances of the order statistics in a sample of size n from a standardized gamma distribution with parameter r are tabulated for r = 2(1)5 and n = 2(1)10.
openaire   +1 more source

Inference for Variance-Gamma Driven Stochastic Systems

2023 26th International Conference on Information Fusion (FUSION), 2023
Joseph Johnson   +2 more
openaire   +1 more source

Home - About - Disclaimer - Privacy