Results 51 to 60 of about 2,569,963 (324)
Tail-event driven NETwork dependence in emerging markets
This paper employs the Tail Event NETwork (TENET) to identify financial markets with greater potential risk, and simultaneously investigate the interdependence between them.
M. Naeem +4 more
semanticscholar +1 more source
A Euclidean likelihood estimator for bivariate tail dependence [PDF]
The spectral measure plays a key role in the statistical modeling of multivariate extremes. Estimation of the spectral measure is a complex issue, given the need to obey a certain moment condition.
de Carvalho, Miguel +3 more
core +2 more sources
Tail Dependence for Heavy-Tailed Scale Mixtures of Multivariate Distributions [PDF]
The tail dependence of multivariate distributions is frequently studied via the tool of copulas. In this paper we develop a general method, which is based on multivariate regular variation, to evaluate the tail dependence of heavy-tailed scale mixtures of multivariate distributions, whose copulas are not explicitly accessible.
Li, Haijun, Sun, Yannan
openaire +2 more sources
A Note on Upper Tail Behavior of Liouville Copulas
The family of Liouville copulas is defined as the survival copulas of multivariate Liouville distributions, and it covers the Archimedean copulas constructed by Williamson’s d-transform.
Lei Hua
doaj +1 more source
PATHS AND INDICES OF MAXIMAL TAIL DEPENDENCE [PDF]
AbstractWe demonstrate both analytically and numerically that the existing methods for measuring tail dependence in copulas may sometimes underestimate the extent of extreme co-movements of dependent risks and, therefore, may not always comply with the new paradigm of prudent risk management.
Edward Furman +2 more
openaire +4 more sources
On the tail dependence in bivariate hydrological frequency analysis
In Bivariate Frequency Analysis (BFA) of hydrological events, the study and quantification of the dependence between several variables of interest is commonly carried out through Pearson’s correlation (r), Kendall’s tau (τ) or Spearman’s rho (ρ).
Lekina Alexandre +2 more
doaj +1 more source
Robust Learning of Tail Dependence
Accurate estimation of tail dependence is difficult due to model misspecification and data contamination. This paper introduces a class of minimum f-divergence estimators for the tail dependence coefficient that unifies robust estimation with extreme ...
Omid M. Ardakani
doaj +1 more source
An Analysis of a Heuristic Procedure to Evaluate Tail (in)dependence
Measuring tail dependence is an important issue in many applied sciences in order to quantify the risk of simultaneous extreme events. A usual measure is given by the tail dependence coefficient.
Marta Ferreira, Sérgio Silva
doaj +1 more source
A Note on Tail Dependence Regression
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, Qingzhao +2 more
openaire +1 more source
Power-Law Distributions from Sigma-Pi Structure of Sums of Random Multiplicative Processes
We introduce a simple growth model in which the sizes of entities evolve as multiplicative random processes that start at different times. A novel aspect we examine is the dependence among entities.
Arthur Matsuo Yamashita Rios de Sousa +3 more
doaj +1 more source

