Results 111 to 120 of about 23,103 (324)

A partially heterogeneous weighted fusion learning method for potential heterogeneous treatment effect in multi-site survival study

open access: yesBMC Medical Research Methodology
Background In multi-site studies in clinical practice, the treatment effects may exhibit potential heterogeneity across different sites. Additionally, propensity score methods used to adjust for confounding may suffer from model misspecification, which ...
Chen Huang   +3 more
doaj   +1 more source

A Review of the Effect of Relaxed Clock Method, Long Branches, Genes, and Calibrations in the Estimation of Angiosperm Age

open access: yesBotan‪ical Sciences, 2014
The timing of angiosperm origin and diversification is crucial to understand the evolution of terrestrial ecosystems as we know them today. The fossil record and relaxed molecular clocks provide substantially different estimates of the time in which ...
Susana Magallón
doaj   +1 more source

A Cautionary Tale of Model Misspecification and Identifiability

open access: yesBulletin of Mathematical Biology
Mathematical models are routinely applied to interpret biological data, with common goals that include both prediction and parameter estimation. A challenge in mathematical biology, in particular, is that models are often complex and non-identifiable, while data are limited.
Alexander P. Browning   +2 more
openaire   +3 more sources

Corporate Dynamic Eco‐Innovation Capability and Carbon Emission Reduction: Evidence From African Listed Firms With the Role of Institutional Pressures

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Despite the global emphasis on simultaneous achievement of higher growth and lower pollution (green growth), the dynamic link between eco‐innovation and CO2 emissions remains inadequately understood globally and specifically in Africa, with a complex and diverse institutional and regulatory landscape.
Idorenyin J. Okon   +2 more
wiley   +1 more source

On valid descriptive inference from non-probability sample

open access: yesStatistical Theory and Related Fields, 2019
We examine the conditions under which descriptive inference can be based directly on the observed distribution in a non-probability sample, under both the super-population and quasi-randomisation modelling approaches.
Li-Chun Zhang
doaj   +1 more source

Model Misspecification, Learning and Real Exchange Rate Dynamics [PDF]

open access: yes, 2015
Based on Lewis & Markiewicz (2009), the purpose of this paper is to explore if implied real exchange rate dynamics are similar to these obtained from observed data under a model with misspecification.
Liu, Jia-luen
core  

Model misspecification analysis for bond options and Markovian hedging strategies [PDF]

open access: yes, 2007
In this paper, we analyse the model misspecification risk of Markovian hedging strategies for discount bond options. We show how to decompose the Profit and Loss that results from model misspecification, and emphasize the importance of the position's ...
Gibson, Rajna   +4 more
core   +1 more source

From Informality to Green Development: How the Shadow Economy Affects Green Finance, Green Innovation, and Green Trade

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Achieving green transition has become an essential policy priority for which economies need to mobilize green finance, increase green innovation, and promote trade in environmentally sustainable goods and services. However, the effectiveness of policies for enhanced green development depends not only on their design but also on their ...
Sami Ur Rahman   +3 more
wiley   +1 more source

Uncertainty quantification for misspecified machine learned interatomic potentials

open access: yesnpj Computational Materials
The use of high-dimensional regression techniques from machine learning has significantly improved the quantitative accuracy of interatomic potentials. Atomic simulations can now plausibly target quantitative predictions in a variety of settings, which ...
Danny Perez   +3 more
doaj   +1 more source

Does the CEO's Attention Affect How Well the Firm Performs Environmentally?

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study explores whether CEOs' environmental attention (CEA) enhances firms' environmental performance. Drawing on attention‐based and upper echelons theories, which emphasize that executives' cognitive focus shapes organizational outcomes, we argue that CEOs who devote greater attention to environmental issues are more likely to integrate ...
Salah Aldain Abdullah Alshorman   +2 more
wiley   +1 more source

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