Results 91 to 100 of about 1,125,629 (142)

Output Quality, Productivity, and Demand: Evidence from the Chinese Steel Industry

open access: yesThe RAND Journal of Economics, Volume 57, Issue 3, Page 784-807, Autumn (Fall) 2026.
ABSTRACT Unobserved objective output quality complicates the analysis of firm productivity and demand because higher‐quality products entail higher costs but offer greater consumption benefits. Using a panel of firms with output quality data, we decompose quantity‐based productivity into fundamental productivity and the costs of quality, and separate ...
Jing Li, Shengyu Li, Hongsong Zhang
wiley   +1 more source

Introduction to τ-tilting theory. [PDF]

open access: yesProc Natl Acad Sci U S A, 2014
Iyama O, Reiten I.
europepmc   +1 more source

Modelling Hierarchical Configurations in Innovation Research With Two‐Step QCA: Methodological Recommendations and an Application to Workarounds

open access: yesCreativity and Innovation Management, Volume 35, Issue 3, Page 641-657, September 2026.
ABSTRACT Creativity and innovation are often understood as the result of a complex interplay of hierarchical factors, such as national, regional and firm characteristics, or between organisational and individual factors. While recent applications of qualitative comparative analysis (QCA) have begun to model such configurational links, their ...
Luc Sandfort   +3 more
wiley   +1 more source

A noncommutative catenoid. [PDF]

open access: yesLett Math Phys, 2018
Arnlind J, Holm C.
europepmc   +1 more source

Large Language Models in Electrical and Computer Engineering Education: Opportunities, Challenges and the Road Ahead

open access: yesEuropean Journal of Education, Volume 61, Issue 3, September 2026.
ABSTRACT Electrical and Computer Engineering (EE/CE) education encompasses the rigorous study of electronic systems, computing architectures, embedded platforms, signal processing and hardware–software integration. Its inherently multidisciplinary nature demands mastery of mathematical modelling and experimental validation skills that pose substantial ...
Abdulmalik Alwarafy
wiley   +1 more source

A New Effect Size for Meta‐Analysis of Magnitude: lnM

open access: yesEcology Letters, Volume 29, Issue 9, September 2026.
Meta‐analyses often ask how strongly groups differ, irrespective of direction, but converting signed effects to absolute values can inflate magnitudes and produce folded, non‐normal sampling distributions. We introduce lnM, a log‐ratio of between‐group to within‐group standard deviations, to quantify direction‐free separation on an approximately normal
Shinichi Nakagawa   +8 more
wiley   +1 more source

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