Results 131 to 140 of about 123,594 (283)

Do Investors React Differently to GHG Emission in Stock Pricing Across Firms? Evidence From Commonwealth African Countries Using a Novel Wavelet‐Enhanced QQR Approach

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study examines the intricate and asymmetric relationship between corporate greenhouse gas emission disclosure and stock returns and crash risks, focusing on listed firms in six Commonwealth African countries characterized by regulatory fragility, limited investor protection, and growing climate vulnerability.
Idorenyin J. Okon   +2 more
wiley   +1 more source

MÉTODOS DISCRETOS Y CONTINUOS PARA MODELAR LA DENSIDAD DE PROBABILIDAD DE LA VOLATILIDAD ESTOCÁSTICA DE LOS RENDIMIENTOS DE SERIES FINANCIERAS DISCRETE AND CONTINUOUS METHODS FOR MODELING FINANCIAL SERIES YIELDING STOCHASTIC VOLATILITY PROBABILITY DENSITY

open access: yesRevista Ingenierías Universidad de Medellín, 2007
En este trabajo se consideran los rendimientos diarios de un activo financiero con el propósito de modelar y comparar la densidad de probabilidad de la volatilidad estocástica de los retornos. Para tal fin, se proponen los modelos ARCH y sus extensiones,
Carlos Alexánder Grajales Correa   +1 more
doaj  

Post-Hoc Tests in One-Way ANOVA: The Case for Normal Distribution

open access: yesMethodology
When one-way ANOVA is statistically significant, a multiple comparison problem arises, hence post-hoc tests are needed to elucidate between which groups significant differences are found.
Joel Juarros-Basterretxea   +5 more
doaj   +1 more source

PARAMETRIC MODELING AND SIMULATION OF JOINT PRICE-PRODUCTION DISTRIBUTIONS UNDER NON-NORMALITY, AUTOCORRELATION AND HETEROSCEDASTICITY: A TOOL FOR ASSESSING RISK IN AGRICULTURE [PDF]

open access: yes
This study presents a way to parametrically model and simulate multivariate distributions under potential non-normality, autocorrelation and heteroscedasticity and illustrates its application to agricultural risk analysis.
Ramirez, Octavio A.
core   +1 more source

Life Cycle Analysis as a Sustainable Governance Lever for Environmental Performance: Evidence From French SBF 120 Companies

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study draws on neo‐institutional theory, stakeholder theory, and the resource‐based view to examine the relationship between the use of Life Cycle Analysis (LCA) and firms' Environmental Performance (EP). Focusing on French companies listed on the SBF 120 index from 2002 to 2021, it investigates how LCA adoption influences EP across three
Nesrine Ben Ismail, Sami Ben Larbi
wiley   +1 more source

Identification Through Heteroscedasticity in a Multicountry and Multimarket Framework [PDF]

open access: yes
This paper formally proves that Rigobon and Sack (2004)'s approach of identifying monetary policy shocks through heteroscedasticity can be extended to a multimarket and multicountry framework.
Bernd Hayo, Britta Niehof
core  

CEO Overconfidence, Industry Competition, and ESG Performance

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study examines the interplay among CEO overconfidence, industry competition, and firms' ESG (Environmental, Social, and Governance) performance. With the growing importance of ESG management, firms are investing more in ESG initiatives as a strategic approach to mitigating downside risk. However, overconfident CEOs, characterized by their
Taehyung Kim, Jaeseog Na
wiley   +1 more source

Does Inflation Targeting Matter? A Reassessment [PDF]

open access: yes
This paper uses a number of identification approaches (using instrumental variables, assumptions about heteroscedasticity and panel fixed effects) to estimate the effect of inflation targeting on inflation.
Luke B. Willard
core  

Efficacy of the Intervention Against the Stigmatization of Men With Eating Disorders in Primary Healthcare (iSMEsH): Results From a Randomized Waitlist‐Controlled Study

open access: yesInternational Journal of Eating Disorders, EarlyView.
ABSTRACT Objective Eating disorders (EDs) in men are underdiagnosed and undertreated, partly due to stigma hindering help‐seeking. This randomized waitlist‐controlled study tested the efficacy of the iSMEsH online anti‐stigma intervention targeting German general practitioners (GPs) and medical students.
Martin S. Lehe   +3 more
wiley   +1 more source

A Score Test for Individual Heteroscedasticity in a One-way Error Components Model [PDF]

open access: yes
The purpose of this paper is to derive a Rao's efficient score statistic for testing for heteroscedasticity in an error components model with only individual effects. We assume that the individual effect exists and therefore do not test for it.
Alberto HOLLY, Lucien GARDIOL
core  

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