Results 31 to 40 of about 9,365 (302)
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
Quasi-copulas as linear combinations of copulas
Fuzzy Sets and SystemsWe prove that every quasi-copula can be written as a uniformly converging infinite sum of multiples of copulas. Furthermore, we characterize those quasi-copulas which can be written as a finite sum of multiples of copulas, i.e., that are a linear combination of two copulas.
Gregor Dolinar, Bojan Kuzma, Nik Stopar
openaire +5 more sources
Business Strategy and the Environment, EarlyView.ABSTRACT Circular supply chain management (CSCM) practices are seen as a solution for addressing society's many significant environmental challenges. Although existing studies recognise the importance of reverse engineering in combating poverty, there is limited knowledge about its effectiveness in shaping CSCM practices to address climate change and ...
Yaw Agyabeng‐Mensah +2 more
wiley +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.
Romera, Rosario, Molanes, Elisa M.
core
Copulas for statistical signal processing (Part I) : extensions and generalization [PDF]
, 2014 Existing works on multivariate distributions mainly focus on limited distribution functions and require that the associated marginal distributions belong to the same family. Although this simplifies problems, it may fail to deal with practical cases when
Wang, Zheng +4 more
core +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
Business Strategy and the Environment, EarlyView.ABSTRACT Although ESG controversies are on the rise, research investigating them yields contradictory findings. The paper provides resolutions to the debate through investigating (a) how ESG controversies influence firms' short‐term and long‐term financial performance; (b) how firms navigate ESG controversies' effect; and (c) how ESG controversies ...
Amalesh Sharma +3 more
wiley +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
Business Strategy and the Environment, EarlyView.ABSTRACT Although firms that integrate a sustainability orientation (SO) may experience a significant improvement in their resource efficiency, many, particularly small‐ and medium‐sized enterprises (SMEs), still struggle with the complexities of incorporating sustainability into their business models.
Michael Adu Kwarteng +3 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