Results 31 to 40 of about 25,546 (258)
Bounds on Integrals with Respect to Multivariate Copulas
, 2016 Finding upper and lower bounds to integrals with respect to copulas is a quite prominent problem in applied probability. In their 2014 paper, Hofer and Iaco showed how particular two dimensional copulas are related to optimal solutions of the two ...
Preischl, Michael
core +2 more sources
Bivariate copulas defined from matrices [PDF]
, 2013 We propose a semiparametric family of copulas based on a set of orthonormal functions and a matrix. This new copula permits to reach values of Spearman's Rho arbitrarily close to one without introducing a singular component.
Amblard, Cécile +2 more
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Generating VaR scenarios with product beta distributions [PDF]
, 2018 We propose a Monte Carlo simulation method to generate stress tests by VaR scenarios under Solvency II for dependent risks on the basis of observed data.
Pfeifer, Dietmar, Ragulina, Olena
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The Challenge of Handling Structured Missingness in Integrated Data Sources
Advanced Intelligent Discovery, EarlyView.As data integration becomes ever more prevalent, a new research question that emerges is how to handle missing values that will inevitably arise in these large‐scale integrated databases? This missingness can be described as structured missingness, encompassing scenarios involving multivariate missingness mechanisms and deterministic, nonrandom ...
James Jackson +6 more
wiley +1 more source
Theoretical Validation of New Two-Dimensional One-Variable-Power Copulas
Axioms, 2023 One of the most effective ways to illustrate the relationship between two quantitative variables is to describe the corresponding two-dimensional copula.
Christophe Chesneau
doaj +1 more source
Copulas in finance and insurance [PDF]
, 2008 Copulas provide a potential useful modeling tool to represent the dependence structure among variables and to generate joint distributions by combining given marginal distributions. Simulations play a relevant role in finance and insurance.
Molanes, Elisa M., Romera, Rosario
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Business Strategy and the Environment, EarlyView.ABSTRACT Firms' continuous pursuit of making a profit in the competitive market may ignore the actions related to environmental responsibilities. This set of actions for financial gains constitutes environmental misconduct, which not only harms ecosystems and communities but also brings reputational damage. Negative press and social media amplification
Ashutosh Singh +3 more
wiley +1 more source
Water Science and Engineering, 2013 The question of how to choose a copula model that best fits a given dataset is a predominant limitation of the copula approach, and the present study aims to investigate the techniques of goodness-of-fit tests for multi-dimensional copulas. A goodness-of-
Ming-wei Ma +4 more
doaj +1 more source
Comportement extrémal des copules diagonales et de Bertino
Comptes Rendus. Mathématique, 2021 The maximal attractors of bivariate diagonal and Bertino copulas are determined under suitable regularity conditions. Some consequences of these facts are drawn, namely bounds on the maximal attractor of a symmetric copula with a given diagonal section ...
Genest, Christian, Sabbagh, Magid
doaj +1 more source
Impact of non-stationarity on estimating and modeling empirical copulas of daily stock returns
, 2015 All too often measuring statistical dependencies between financial time series is reduced to a linear correlation coefficient. However this may not capture all facets of reality.
Schäfer, Rudi, Wollschläger, Marcel
core +1 more source