Results 81 to 90 of about 1,052 (202)

New Jensen's bounds for HA-convex mappings with applications to Shannon entropy

Demonstratio Mathematica
The aim of this article is to establish some new extensions and variants of Jensen’s discrete and Simic-type inequalities for HA-convex and uniformly HA-convex functions.
Sayyari Yamin, Butt Saad Ihsan, Dehghanian Mehdi, Agarwal Praveen, Nieto Juan J.   +4 more
doaj   +1 more source

Bayesian inference for dynamic Q matrices and attribute trajectories in hidden Markov diagnostic classification models

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Hidden Markov diagnostic classification models capture how students' cognitive attributes evolve over time. This paper introduces a Bayesian Markov chain Monte Carlo algorithm for diagnostic classification models that jointly estimates time‐varying Q matrices, latent attributes, item parameters, attribute class proportions and transition ...
Chen‐Wei Liu
wiley   +1 more source

Child Protection System and Education: An Umbrella Review of Factors Supporting the Educational Progress of Children in the Foster Care System

Child &Family Social Work, EarlyView.
ABSTRACT International literature has consistently demonstrated that children in the foster care system (FCS) exhibit poorer academic outcomes: lower academic achievement, higher rates of school absenteeism and truancy, lower high school graduation rates and reduced postsecondary educational attainment.
Antonieta Candia‐Fonseca, Laura Arnau‐Sabatés, Josefina Sala‐Roca   +2 more
wiley   +1 more source

Fractional Hermite–Hadamard, Newton–Milne, and Convexity Involving Arithmetic–Geometric Mean-Type Inequalities in Hilbert and Mixed-Norm Morrey Spaces ℓ_q(·)(M_p(·),v(·)) with Variable Exponents

Fractal and Fractional
Function spaces play a crucial role in the study and application of mathematical inequalities. They provide a structured framework within which inequalities can be formulated, analyzed, and applied.
Waqar Afzal, Mujahid Abbas, Daniel Breaz, Luminiţa-Ioana Cotîrlă   +3 more
doaj   +1 more source

The hole in the doughnut: Formalizing and testing a key model of degrowth

Contemporary Economic Policy, EarlyView.
Abstract Degrowth scholars often claim that capitalism generates social and ecological imbalances, as captured by Kate Raworth's leading doughnut model. We formalize this model using social and environmental indices and measure imbalances using their coefficient of variation.
Ashruta Acharya, Vincent Geloso, Aleksander Psurek   +2 more
wiley   +1 more source

Freely (Un)Equal

Economics of Transition and Institutional Change, EarlyView.
ABSTRACT Gender equality in the economy is a key issue on the political agenda. Western countries have long pursued policies promoting free competitive markets, with the EU focusing on harmonisation for market freedom. This study examines how economic freedom impacts gender equality using an instrumental variable approach. Results reveal mixed effects:
Matteo Migheli
wiley   +1 more source

On the Weighted AM--GM Inequality and Refined Inequalities Between Arithmetic Functions

Let \( \varphi(n) \), \( \psi(n) \) and \( \sigma(n) \) denote the Euler totient function and the Dedekind function respectively. Using improved versions of the weighted AM-GM inequality, we obtain a series of sharp upper bounds for \( \varphi(n)^{\varphi(n)} \psi(n)^{\psi(n)} \quad \text{and} \quad \varphi(n)^{\psi(n)} \psi(n)^{\varphi(n ...
openaire   +1 more source

Spanish stock returns, growth, and inflation, 1900–2020

The Economic History Review, EarlyView.
Abstract This paper studies equity returns in the Madrid Stock Exchange and their connections with the macroeconomy from the emergence of a stock market around 1900 to its ‘big bang’ at the turn of the twenty‐first century. Using high‐quality data from primary sources and the methodology of the modern IBEX35 (published since 1987), we constructed an ...
Stefano Battilossi, Stefan O. Houpt, Miguel Artola Blanco   +2 more
wiley   +1 more source

Speculation in the United Kingdom, 1785‒2019

The Economic History Review, EarlyView.
Abstract Speculation has long been thought to have significant economic effects, but it is difficult to measure, making it challenging to examine these effects empirically. In this paper we measure speculation in the United Kingdom since 1785 by using business and financial reporting in The Times newspaper.
William Quinn, John D. Turner, Clive B. Walker   +2 more
wiley   +1 more source

Is There Intersectional Labor Market Discrimination?

Industrial Relations: A Journal of Economy and Society, EarlyView.
ABSTRACT We test for intersectional labor market discrimination across five dimensions: gender, race, ethnicity, sexual orientation, and disability. Specifically, we test for “amplifying intersectionality”—negative interactions between the effects of marginalized identities that make wage penalties greater than additive.
Joanne Song McLaughlin, David Neumark
wiley   +1 more source