Results 141 to 150 of about 72,082 (280)
Estimating Mean and Variance Through Quantiles: An Experimental Comparison of Different Methods
If estimates of mean and variance are needed and only experts' opinions are available, the literature agrees that it is wise behaviour to ask only for their (subjective) estimates of quantiles: from these, estimates of the desired parameters are ...
Moors, J.J.A. +2 more
core +1 more source
Managing international portfolios with small capitalization stocks [PDF]
In the context of an international portfolio diversification problem, we find that small capitalization equity portfolios become riskier in bear markets, i.e. display negative co-skewness with other stock indices and high co-kurtosis.
Massimo Guidolin, Giovanna Nicodano
core
Decreased Mean Kurtosis in the Putamen is a Diagnostic Feature of Minimal Hepatic Encephalopathy in Patients with Cirrhosis. [PDF]
Sato T +8 more
europepmc +1 more source
ABSTRACT This study examines the relationship between humble leadership and employee deviance in uncertain organizational environments, with a focus on the moderating role of employee mindfulness and the mediating role of basic psychological needs, as framed by self‐determination theory (SDT).
Ma Zixian +5 more
wiley +1 more source
ABSTRACT Existing research shows that corporate social responsibility (CSR) benefits firms in terms of return on investment, customer satisfaction, and reputation; however, limited attention is given to employees as internal stakeholders. Drawing on Stakeholder Theory, Social Exchange Theory, and Social Identity Theory, this study investigates how CSR ...
Mengyun Zhang +4 more
wiley +1 more source
The Sustainability Revolution: How Generative AI Powers Ethical and Transparent Global Supply Chains
ABSTRACT This study examines how generative artificial intelligence (GenAI) can strengthen transparency and sustainability in global supply chains. Specifically, it distinguishes between (i) GenAI‐enabled sustainability reporting (i.e., automated generation of auditable narrative disclosures from multi‐tier supply chain data) and (ii) predictive ...
Rizwan Matloob Ellahi +4 more
wiley +1 more source
KURTOSIS AND SEMI-KURTOSIS FOR PORTFOLIO SELECTION WITH FUZZY RETURNS
International audienceThe literature on portfolio analysis assumes that the securities returns are random variables with fixed expected returns and variances values (see Bachelier [1], Briec et al. [4] and Markowitz [10]).
Sadefo-Kamdem, Jules +2 more
core
ABSTRACT This study examines the role of capital expenditure in the relationship between financial performance and corporate reputation. Using moderation and mediation analyses based on multiple regressions with bootstrapping, we examined data from 121 airlines from 46 countries during 2007–2023.
Larissa M. Batrancea +2 more
wiley +1 more source
Coupling Fluid Neutrals to Gyrokinetic Plasma Dynamics for Edge and SOL Turbulence Simulations
ABSTRACT Accurate modeling of turbulent transport in magnetic confinement fusion devices requires extending first‐principles gyrokinetic simulations from the core to the edge and scrape‐off layer (SOL), where additional physics—particularly plasma–neutrals interactions—must be included.
Sabine Ogier‐Collin +3 more
wiley +1 more source
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski +4 more
wiley +1 more source

