Results 61 to 70 of about 13,855,951 (296)

Bias of the Quasi Score Estimator of a Measurement Error Model Under Misspecification of the Regressor Distribution [PDF]

, 2003
In a structural error model the structural quasi score (SQS) estimator is based on the distribution of the latent regressor variable. If this distribution is misspecified the SQS estimator is (asymptotically) biased.
Cheng, Chi-Lun, Schneeweiß, Hans
core   +1 more source

Accounting for animal health in efficiency analysis: An application to Swedish dairy farms

American Journal of Agricultural Economics, EarlyView.
Abstract Poor animal health is a central concern in modern livestock production. Despite the necessity to incorporate animal health in efficiency analysis, the theoretical and empirical developments are limited on this subject. This article appropriately characterizes the axiomatic properties of animal health within a production framework.
Frederic Ang, Enoch Owusu‐Sekyere, Karin Alvåsen, Helena Hansson   +3 more
wiley   +1 more source

On the robustness of the adaptive lasso to model misspecification [PDF]

Biometrika, 2012
Penalization methods have been shown to yield both consistent variable selection and oracle parameter estimation under correct model specification. In this article, we study such methods under model misspecification, where the assumed form of the regression function is incorrect, including generalized linear models for uncensored outcomes and the ...
W. Lu, Y. Goldberg, J. P. Fine
openaire   +3 more sources

Food insecurity and unemployment among immigrants in the United States

American Journal of Agricultural Economics, EarlyView.
Abstract Immigrants can be more vulnerable to economic downturns and, during periods of economic hardship, more likely to experience food insecurity compared to natives. This study examines the differential effect of the unemployment rate on the probability of being food insecure among diverse groups of immigrant households relative to natives in the ...
Siwen Zhou, Joshua Berning, Alessandro Bonanno, Jude Bayham   +3 more
wiley   +1 more source

Assessing the impact of variance heterogeneity and misspecification in mixed-effects location-scale models

BMC Medical Research Methodology
Purpose Linear Mixed Model (LMM) is a common statistical approach to model the relation between exposure and outcome while capturing individual variability through random effects.
Vincent Jeanselme, Marco Palma, Jessica Barrett   +2 more
doaj   +1 more source

A critical re-evaluation of the regression model specification in the US D1 EQ-5D value function

Population Health Metrics, 2012
Background The EQ-5D is a generic health-related quality of life instrument (five dimensions with three levels, 243 health states), used extensively in cost-utility/cost-effectiveness analyses.
Rand-Hendriksen Kim, Augestad Liv A, Dahl Fredrik A   +2 more
doaj   +1 more source

Pharmacometric evaluation of pre‐referral rectal artesunate in children with severe malaria

British Journal of Clinical Pharmacology, EarlyView.
Aims Parenteral artesunate is the preferred first‐line treatment for severe malaria. Pre‐referral rectal artesunate suppositories are recommended where parenteral treatment is inaccessible. In this study, we compared dihydroartemisinin exposure and model‐predicted early parasite clearance following rectal artesunate and intravenous artesunate in ...
Ayorinde Adehin, Marie A. Onyamboko, Caterina Fanello, Nicholas J. White, Nicholas P. J. Day, Richard M. Hoglund, Joel Tarning   +6 more
wiley   +1 more source

The Perils of Environmental, Social, and Governance (ESG) Controversies: Implications for a Firm's Financial and Nonfinancial Performance

Business Strategy and the Environment, EarlyView.
ABSTRACT Although ESG controversies are on the rise, research investigating them yields contradictory findings. The paper provides resolutions to the debate through investigating (a) how ESG controversies influence firms' short‐term and long‐term financial performance; (b) how firms navigate ESG controversies' effect; and (c) how ESG controversies ...
Amalesh Sharma, Sourav Bikash Borah, Anirban Adhikary, Sanjay Kumar Jena   +3 more
wiley   +1 more source

Parameter uncertainties for imperfect surrogate models in the low-noise regime

Machine Learning: Science and Technology
Bayesian regression determines model parameters by minimizing the expected loss, an upper bound to the true generalization error. However, this loss ignores model form error, or misspecification, meaning parameter uncertainties are significantly ...
Thomas D Swinburne, Danny Perez
doaj   +1 more source

Financial Constraints and Corporate Sustainability Performance: Do Climate Exposure and People's Climate Attention Matter?

Business Strategy and the Environment, EarlyView.
ABSTRACT This study investigates the relationship between financial constraints and a firm's sustainability performance. Our empirical analysis utilises a panel of 40,445 observations from 9466 listed non‐financial firms across 44 countries, spanning the period from 2002 to 2019.
Boying Xu, Ruth Owusu‐Mensah, Daniel Gyimah   +2 more
wiley   +1 more source