Results 11 to 20 of about 2,940,601 (236)

Modeling overdispersion with the normalized tempered stable distribution [PDF]

open access: yesComputational Statistics & Data Analysis, 2011
This paper discusses a multivariate distribution which generalizes the Dirichlet distribution and demonstrates its usefulness for modelling overdispersion in count data. The distribution is constructed by normalizing a vector of independent Tempered Stable random variables.
M. Kolossiatis   +2 more
openaire   +4 more sources

Estimation for multivariate normal rapidly decreasing tempered stable distributions [PDF]

open access: yesJournal of Statistical Computation and Simulation, 2023
In this paper we describe a methodology for parameter estimation of multivariate distributions defined as normal mean-variance mixture where the mixing random variable is rapidly decreasing tempered stable distributed. We address some numerical issues resulting from the use of the characteristic function for density approximation.
Michele Leonardo Bianchi   +1 more
openaire   +2 more sources

On the convolution equivalence of tempered stable distributions on the real line [PDF]

open access: yesStatistics & Probability Letters
We show the convolution equivalence property of univariate tempered stable distributions in the sense of Rosińsky (2007). This makes rigorous various classic heuristic arguments on the asymptotic similarity between the probability and Lévy densities of such distributions. Some specific examples from the literature are discussed.
Torricelli, Lorenzo
core   +6 more sources

Pricing multi-asset options with tempered stable distributions

open access: yesFinancial Innovation
We derive methods for risk-neutral pricing of multi-asset options, when log-returns jointly follow a multivariate tempered stable distribution. These lead to processes that are more realistic than the better known Brownian motion and stable processes ...
Yunfei Xia, Michael Grabchak
doaj   +2 more sources

Portfolio Analysis with Multivariate Normal Tempered Stable Processes and Distributions [PDF]

open access: yes, 2011
Using the construction approach of Brownian subordination, the univariate framework of Normal Tempered Stable Lévy processes is extended to an arbitrary number of dimensions. A thorough study of the mathematical properties of the multivariate stochastic process is followed by various applications of its distributions in financial econometrics and ...
Krause, Dirk
openaire   +4 more sources

Modelling Cell Generation Times by Using the Tempered Stable Distribution

open access: yesJournal of the Royal Statistical Society Series C: Applied Statistics, 2008
Summary We show that the family of tempered stable distributions has considerable potential for modelling cell generation time data. Several real examples illustrate how these distributions can improve on currently assumed models, including the gamma and inverse Gaussian distributions which arise as special cases.
Palmer, Karen J.   +2 more
openaire   +2 more sources

Quantile-Based Inference for Tempered Stable Distributions

open access: yesSSRN Electronic Journal, 2015
If the closed-form formula for the probability density function is not available, implementing the maximum likelihood estimation is challenging. We introduce a simple, fast, and accurate way for the estimation of numerous distributions that belong to the class of tempered stable probability distributions.
Hasan A. Fallahgoul   +2 more
openaire   +2 more sources

Use of tempered stable distributions in GARCH(1, 1) models

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2018
Use of classical and modified tempered stable distributions for GARCH models is considered in the paper. Such models are applied for the analysis of financial and economic time series, which have several special properties: volatility clustering, heavy ...
Uladzimir S. Tserakh
doaj   +1 more source

Tempered Stable Distributions: Properties And Extensions [PDF]

open access: yes, 2011
It has been observed that data often appears to be well approximated by infinite variance stable distributions in some central region, but the tails of the distribution are actually lighter. Tempered stable distributions, which were introduced in [Ros07],
Grabchak, Michael
core   +6 more sources

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