Results 71 to 80 of about 79,637 (281)

The relationship between excess returns, firm size and earnings on the Johannesburg Stock Exchange

open access: yesSouth African Journal of Business Management, 1991
While considerable empirical work has been conducted in the United States concerning excess returns and the relationship of these returns to firm size and E/P ratio, thus far, there have been few similar empirical studies conducted using Johannesburg ...
Michael J. Page, Francis Palmer
doaj   +1 more source

Misspecification in mixed-model based association analysis

open access: yes, 2015
Additive genetic variance in natural populations is commonly estimated using mixed models, in which the covariance of the genetic effects is modeled by a genetic similarity matrix derived from a dense set of markers.
Kruijer, Willem
core   +2 more sources

The Effect of Voluntary Staying at Home on Japanese Female Suicide During the COVID‐19 Pandemic

open access: yesHealth Economics, EarlyView.
ABSTRACT In Japan, female suicide increased during the COVID‐19 pandemic. This study evaluated how pandemic‐related home confinement affected female suicide. We employed a shift‐share instrumental variable design to assess whether differential exposure to the pandemic caused changes in suicide incidence.
Yoko Ibuka   +3 more
wiley   +1 more source

Bayesian Model Averaging for Model Implied Instrumental Variable Two Stage Least Squares Estimators

open access: yes, 2018
Model-Implied Instrumental Variable Two-Stage Least Squares (MIIV-2SLS) is a limited information, equation-by-equation, non-iterative estimator for latent variable models.
Bollen, Kenneth A.   +2 more
core  

The Structure of Informal Learning in the Workplace—An Experience Sampling Approach

open access: yesHuman Resource Development Quarterly, EarlyView.
ABSTRACT This paper complements retrospective approaches to researching informal learning in the workplace with experience sampling. Since (conscious) informal learning is becoming increasingly important for successfully keeping pace with rapid changes in working environments, a clear understanding of the construct and its precise measurement are ...
Katja Häußermann, Tina Seufert
wiley   +1 more source

Errors in Statistical Inference Under Model Misspecification: Evidence, Hypothesis Testing, and AIC

open access: yesFrontiers in Ecology and Evolution, 2019
The methods for making statistical inferences in scientific analysis have diversified even within the frequentist branch of statistics, but comparison has been elusive.
Brian Dennis   +4 more
doaj   +1 more source

Age‐specific breast cancer incidence by subtype, TNM stage and screening status in Sweden 2008–2019 estimated with multiple imputation

open access: yesInternational Journal of Cancer, EarlyView.
What's New? Breast cancer incidence in women increases with age, but which subtypes contribute the most at different ages remains unclear. Incidence patterns of breast cancer subtypes are typically under‐reported in population‐based studies due to a high proportion of cases lacking subtype information.
Leo Gkekos   +4 more
wiley   +1 more source

Longitudinal mediation analysis with multilevel and latent growth models: a separable effects causal approach

open access: yesBMC Medical Research Methodology
Background Causal mediation analysis is widespread in applied medical research, especially in longitudinal settings. However, estimating natural mediational effects in such contexts is often difficult because of the presence of post-treatment confounding.
Chiara Di Maria, Vanessa Didelez
doaj   +1 more source

Genetic model misspecification in genetic association studies

open access: yesBMC Research Notes, 2017
Objective The underlying model of the genetic determinant of a trait is generally not known with certainty a priori. Hence, in genetic association studies, a dominant model might be erroneously modelled as additive, an error investigated previously.
Amadou Gaye, Sharon K. Davis
doaj   +1 more source

Acknowledgement Misspecification in Macroeconomic Theory [PDF]

open access: yes
We explore methods for confronting model misspecification in macroeconomics. We construct dynamic equilibria in which private agents and policy makers recognize that models are approximations.
Hansen, Lars-Peter, Sargent, Thomas-J
core  

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