Results 41 to 50 of about 148,439 (334)

Detecting Lack of Identification in GMM [PDF]

open access: yesInternational Finance Discussion Papers, 2000
In the standard linear instrumental variables regression model, it must be assumed that the instruments are correlated with the endogenous variables in order to ensure the consistency and asymptotic normality of the usual instrumental variables estimator.
openaire   +2 more sources

Sliced Wasserstein Distance for Learning Gaussian Mixture Models

open access: yes, 2017
Gaussian mixture models (GMM) are powerful parametric tools with many applications in machine learning and computer vision. Expectation maximization (EM) is the most popular algorithm for estimating the GMM parameters.
Hoffmann, Heiko   +2 more
core   +1 more source

Macroeconomic Resilience to Socioeconomic Challenges and Corporate Stability in the Automotive Industry: Impact on Dividend Policy [PDF]

open access: yesSocioEconomic Challenges
The study explains the relationship between macroeconomic and firm-affecting variables with dividend payout policy in the Indian automobile firms. A comprehensive dataset covering 18 Indian automobile manufacturing companies listed on the Bombay Stock ...
Rajat Mehrotra, Saurabh Chadha
doaj   +1 more source

A Qualitative Analysis of Patient Perspectives and Preferences in Lupus Management to Guide Lupus Guidelines Development

open access: yesArthritis Care &Research, EarlyView.
Objective A patient‐centered approach for chronic disease management, including systemic lupus erythematosus (SLE), aligns treatment with patients’ values and preferences, leading to improved outcomes. This paper summarizes how patient experiences, perspectives, and priorities informed the American College of Rheumatology (ACR) 2024 Lupus Nephritis (LN)
Shivani Garg   +20 more
wiley   +1 more source

Unveiling the Factors Behind the Shadow Economy: A Global Investigation Utilizing Panel Data Analysis [PDF]

open access: yesRevista de Studii Financiare
The paper addresses the topic of the shadow economy and the socio-economic factors that influence it. By reviewing relevant studies, we will observe that a variety of factors play a role in shaping this economy.
Mihai-Adrian Achim, Codruța Mare
doaj   +1 more source

Government spending and school enrolment in sub-Saharan Africa: A system GMM approach

open access: yesJournal of Economics and Management, 2020
Aim/purpose – Provision of basic education is pertinent to human capital development, poverty alleviation and abating the threat of insurgence in Africa. Governments in different countries in sub-Saharan Africa (SSA) do budget and spend various amount of
Oseni Isiaq Olasunkanmi   +3 more
doaj   +1 more source

Gut microbial metabolite functional screening platform

open access: yes生物医学转化, 2022
Human gut microbial metabolites are closely related to the physiological functions of the human body, and the exploration of the functions of these small molecules is an ongoing topic for researchers. With the development of metagenomics and metabolomics,
Li Zhunduo, Sun Hui
doaj   +1 more source

Symmetrically normalized instrumental-variable estimation using panel data [PDF]

open access: yes, 1996
In this paper we discuss the estimation of panel data models with sequential moment restrictions using symmetrically normalized GMM estimators. These estimators are asymptotically equivalent to standard GMM but are invariant to normalization and tend to ...
Alonso-Borrego, César   +1 more
core   +1 more source

Optimal Decision Rules for Weak GMM

open access: yesEconometrica, 2022
This paper studies optimal decision rules, including estimators and tests, for weakly identified GMM models. We derive the limit experiment for weakly identified GMM, and propose a theoretically‐motivated class of priors which give rise to quasi‐Bayes decision rules as a limiting case.
Andrews, Isaiah, Mikusheva, Anna
openaire   +3 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

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