Results 91 to 100 of about 27,516 (250)

Synchronization frequency analysis and stochastic simulation of multi-site flood flows based on the complicated vine copula structure [PDF]

Hydrology and Earth System Sciences
Accurately modeling and predicting flood flows across multiple sites within a watershed presents significant challenges due to potential issues of insufficient accuracy and excessive computational demands in existing methodologies.
X. Yu, Y.-P. Xu, Y. Guo, S. Chen, H. Gu
doaj   +1 more source

Realized copula [PDF]

, 2012
We introduce the notion of realized copula. Based on assumptions of the marginal distributions of daily stock returns and a copula family, realized copula is defined as the copula structure materialized in realized covariance estimated from within-day high-frequency data.
Matthias R. Fengler, Ostap Okhrin
openaire   +3 more sources

Translating Sustainable Development Goals‐Oriented Business Practices Into Sustainable Development: Practice Maturity, Managerial Gender, and Organizational Results

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Despite growing interest in SDG‐oriented business practices, limited attention has been paid to how practice maturity and managerial gender jointly shape the translation of sustainability initiatives into Sustainable Development and organizational results.
Juan Antonio Giménez Espín, Isabel María Martínez Conesa, Pedro Antonio Martín Cervantes   +2 more
wiley   +1 more source

Copula–entropy theory for multivariate stochastic modeling in water engineering

Geoscience Letters, 2018
The copula–entropy theory combines the entropy theory and the copula theory. The entropy theory has been extensively applied to derive the most probable univariate distribution subject to specified constraints by applying the principle of maximum entropy.
Vijay P. Singh, Lan Zhang
doaj   +1 more source

Towards an explanation of copula effects [PDF]

, 2013
This paper deals with a series of semantic contrasts between the copula "be" and the preposition "as", two functional elements that both head elementary predication structures. It will be argued that the meaning of "as" is a type lowering device shifting
Jäger, Gerhard
core  

Disaggregating ESG Practices and Performance Outcomes: Empirical Evidence From the European Healthcare Industry

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study examines the associations between Environmental, Social, and Governance (ESG) practices and organizational performance in 283 European hospitals. Drawing on agency theory, stakeholder theory, and the resource‐based view, it analyses ESG indicators as accounting‐relevant information within the institutional context of European ...
Dorina Nicoara‐Popescu, Elena Puerto‐Casasnovas, Josefa Boria‐Reverter   +2 more
wiley   +1 more source

Estimation of Copula-Based Semiparametric Time Series Models [PDF]

This paper studies the estimation of a class of copula-based semiparametric stationary Markov models. These models are characterized by nonparametric invariant (or marginal) distributions and parametric copula functions that capture the temporal ...
Yanqin Fan, Xiaohong Chen
core  

Coopetition With Innovation Ecosystem Partners and Environmental and Social Solutions: Evidence From Multinational Subsidiaries in China

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Sustainability challenges increasingly require firms to work with diverse innovation ecosystem actors, yet how these interactions relate to environmental and social (ES) solutions remains unclear. Using two‐wave survey data from 270 multinational enterprise (MNE) subsidiaries in China, this study examines how subsidiaries' perceived ...
Min‐Jae Lee, Taewoo Roh
wiley   +1 more source

Bayesian Multivariate Two‐Stage Volatility‐Return Models (MTS‐VR)

Journal of Forecasting, EarlyView.
ABSTRACT This paper develops a class of models to capture the joint dynamics of asset returns and multivariate volatility. Owing to its two‐stage construction, this class is referred to as the multivariate two‐stage volatility‐return (MTS‐VR) model.
Zhenglyu Huang, Jennifer S. K. Chan, Gareth W. Peters   +2 more
wiley   +1 more source

Coupled Assessment of Injection Pressure–Driven Risk, Trapping Evolution, and Cost Uncertainty in Geological CO2 Storage

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Scaling geological CO2 storage requires simultaneously controlling plume migration, pressure buildup, geomechanical integrity, and monitoring cost under deep subsurface uncertainty. Yet early‐stage assessments often treat these elements in isolation, obscuring the decision‐critical couplings between pressure‐defined regulatory exposure and ...
Mrityunjay Singh, Heba Atef, Ingo Sass
wiley   +1 more source