Results 31 to 40 of about 2,569,963 (324)

A geometric investigation into the tail dependence of vine copulas [PDF]

open access: yesJournal of Multivariate Analysis, 2020
Vine copulas are a type of multivariate dependence model, composed of a collection of bivariate copulas that are combined according to a specific underlying graphical structure.
Emma S. Simpson, J. Wadsworth, J. Tawn
semanticscholar   +1 more source

Correlation analysis of financial assets based on asymmetric copula

open access: yesFrontiers in Applied Mathematics and Statistics, 2022
Based on the asymmetric copula function, this paper analyzes the static and dynamic correlation between Shanghai Composite Index and Shenzhen Composite Index.
Xia Li, Bing Hou
doaj   +1 more source

Copula-Based Assessment of Co-Movement and Tail Dependence Structure Among Major Trading Foreign Currencies in Ghana

open access: yesRisks, 2020
This paper examines the joint movement and tail dependence structure between the pair of foreign exchange rates (EUR, USD and GBP) against the GHS, using daily exchange rates data expressed in GHS per unit of foreign currencies (EUR, USD and GBP) between
Prince Osei Mensah, Anokye M. Adam
doaj   +1 more source

Assessing the dependence structure between oceanographic, fluvial, and pluvial flooding drivers along the United States coastline [PDF]

open access: yesHydrology and Earth System Sciences, 2021
Flooding is of particular concern in low-lying coastal zones that are prone to flooding impacts from multiple drivers, such as oceanographic (storm surge and wave), fluvial (excessive river discharge), and/or pluvial (surface runoff).
A. A. Nasr   +4 more
doaj   +1 more source

General Multivariate Dependence using Associated Copulas

open access: yesRevstat Statistical Journal, 2016
This paper studies the general multivariate dependence and tail dependence of a random vector. We analyse the dependence of variables going up or down, covering the 2 d orthants of dimension d and accounting for non-positive dependence.
Yuri Salazar Flores
doaj   +1 more source

Stable tail dependence functions – some basic properties

open access: yesDependence Modeling, 2022
We prove some important properties of the extremal coefficients of a stable tail dependence function (“STDF”) and characterise logistic and some related STDFs.
Ressel Paul
doaj   +1 more source

Operator Tail Dependence of Copulas [PDF]

open access: yesMethodology and Computing in Applied Probability, 2017
A notion of tail dependence based on operator regular variation is introduced for copulas, and the standard tail dependence used in the copula literature is included as a special case. The non-standard tail dependence with marginal power scaling functions having possibly distinct tail indexes is investigated in detail.
openaire   +3 more sources

Tail dependence coefficient of generalized hyperbolic distribution [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2017
The tail dependence describes the limiting proportion of exceeding one margin over a certain threshold given that the other margin has already exceeded that threshold.
Mohalilou Aleiyouka   +2 more
doaj   +1 more source

Analyzing the Causality and Dependence between Exchange Rate and Real Estate Prices in Boom-and-Bust Markets: Quantile Causality and DCC Copula GARCH Approaches

open access: yesAxioms, 2022
Unlike most previous studies examining the causal relationship and dependence between exchange rates and real estate prices, this study aims to investigate the causal relationship and dependence between these two variables in a boom-and-bust market ...
Woraphon Yamaka   +4 more
doaj   +1 more source

Wave Propagation in Gravitational Systems: Late Time Behavior [PDF]

open access: yes, 1995
It is well-known that the dominant late time behavior of waves propagating on a Schwarzschild spacetime is a power-law tail; tails for other spacetimes have also been studied.
B.S. DeWitt   +23 more
core   +3 more sources

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