Results 61 to 70 of about 4,143 (285)

An approach for metric space with a convex combination operation and applications

, 2015
In this paper, we embed metric space endowed with a convex combination operation, named convex combination space, into a Banach space and the embedding preserves the structures of metric and convex combination.
Thuan, Nguyen Tran
core   +1 more source

Associations Between Severe Food Insecurity and Food Addiction in Brazilian Low‐Income Women

European Eating Disorders Review, EarlyView.
ABSTRACT Objective The present study aims to assess the distribution of food addiction (FA) across different levels of food insecurity (FI) in Brazilian women of reproductive age living in poverty, and to investigate the association between FA and FI. Method This is a cross‐sectional study conducted between October 2020 and May 2021 in 40 urban favelas
Amanda Ribeiro Berta, Luiz Gonzaga Ribeiro Silva‐Neto, Juliana Souza Oliveira, Nassib Bezerra Bueno, Telma Maria de Menezes Toledo Florêncio, Ana Paula Grotti Clemente, Giovana Longo‐Silva, Risia Cristina Egito de Menezes   +7 more
wiley   +1 more source

On an upper bound for Sherman’s inequality

Journal of Inequalities and Applications, 2016
Considering a weighted relation of majorization, Sherman obtained a useful generalization of the classical majorization inequality. The aim of this paper is to extend Sherman’s inequality to convex functions of higher order.
Slavica Ivelić Bradanović, Naveed Latif, Josip Pečarić   +2 more
doaj   +1 more source

ESG Performance and Credit Risk: Evidence From Chinese Manufacturing Companies

International Journal of Finance &Economics, EarlyView.
ABSTRACT This study investigates the effect of corporate environmental, social, and governance (ESG) performance on credit risk using a sample of manufacturing firms listed on China's Shanghai and Shenzhen A‐share markets from 2009 to 2021. Employing fixed effects, the generalised method of moments, and instrumental variable models, we find that ...
Yanan Wang, Xiao Zhang, Michal Wojewodzki, Yuxin Jian, Fadey AbiDaoud   +4 more
wiley   +1 more source

Refinements of the integral form of Jensen’s and the Lah–Ribarič inequalities and applications for Csiszár divergence

Journal of Inequalities and Applications, 2020
In this paper, we give refinements of the integral form of Jensen’s inequality and the Lah–Ribarič inequality. Using these results, we obtain a refinement of the Hölder inequality and a refinement of some inequalities for integral power means and ...
J. Pečarić, J. Perić
doaj   +1 more source

Hardy martingales and Jensen's inequality [PDF]

, 2011
The final version of this paper appears in: "Bulletin of the Australian Mathematical Society" 55 (1997): 185-195. Print.Hardy martingales were introduced by Garling and used to study analytic functions on the N-dimensional torus TN, where analyticity is ...
Asmar, Nakhlé H., Montgomery-Smith, Stephen, 1963-   +1 more
core  

Inconsistency of the Capital Asset Pricing Model in a Multi‐Currency Environment

International Journal of Finance &Economics, EarlyView.
ABSTRACT The capital asset pricing model (CAPM) is a widely adopted model in asset pricing theory and portfolio construction because of its intuitive nature. One of its main conclusions is that there exists a global market portfolio that each rational investor should hold in proportion to the risk‐free asset. In this paper, we demonstrate theoretically
Khalifa Al‐Thani, Domenico Mignacca, Gianluca Fusai, Fabio Caccioli, Guido Germano   +4 more
wiley   +1 more source

A Refinement of Jensen's Discrete Inequality for Differentiable Convex Functions [PDF]

, 2002
A refinement of Jensen’s discrete inequality and applications for the celebrated Arithmetic Mean – Geometric Mean – Harmonc Mean inequality and Cauchy-Schwartz-Bunikowski inequality are pointed ...
Dragomir, Sever S, Scarmozzino, F. P
core  

Around Jensen's inequality

Demonstratio Mathematica, 1994
Let \(\tau\) be a normal semifinite trace on a von Neumann algebra \(A\), let \(\alpha: A\to A\) be a positive linear contraction and let \(a= a^*\in A\). If \(f\) is a continuous convex function defined on the spectrum of \(a\), then it is shown that if \(\tau(\alpha(f(a))_+)< \infty\) then either \(\tau((f(\alpha(a)))_+)< \infty\) or \(\tau((f(\alpha(
openaire   +1 more source

CSR disclosure and investment efficiency in MENA countries: The moderating role of CSR committee

Strategic Change, EarlyView.
ABSTRACT Corporate social responsibility disclosure (CSRD) is often recognized as a transparency mechanism that allows companies to communicate their commitment to CSR. However, CSRD may also exacerbate agency conflicts. This study addresses these two contrasting perspectives by investigating the impact of CSRD on investment efficiency and exploring ...
Mohamed Malek Belhoula, Imen Khanchel, Naima Lassoued, Rouba Jebri   +3 more
wiley   +1 more source