A Hybrid Gmm/Svm System For Text Independent Speaker Identification
, 2007 Rafik Djemili +2 more
openalex +1 more source
A Markov approach to credit rating migration conditional on economic states
Canadian Journal of Statistics, EarlyView.Abstract We develop a model for credit rating migration that accounts for the impact of economic state fluctuations on default probabilities. The joint process for the economic state and the rating is modelled as a time‐homogeneous Markov chain. While the rating process itself possesses the Markov property only under restrictive conditions, methods ...
Michael Kalkbrener, Natalie Packham
wiley +1 more source
GMM Clustering-Based Decision Trees Considering Fault Rate and Cluster Validity for Analog Circuit Fault Diagnosis [PDF]
, 2019 Junyou Shi, Qingjie He, Zili Wang
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Valid Inference in Partially Unstable GMM Models [PDF]
The paper considers time series GMM models where a subset of the parameters are time varying. The magnitude of the time variation in the unstable parameters is such that efficient tests detect the instability with (possibly high) probability smaller than
Li, Hong, Mueller, Ulrich
core +1 more source
Does Environmental Social Governance Performance Promote Green Innovation? Evidence From US Firms
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT I examine the relationship between green innovation and ESG performance using a panel of 4920 US public firms over 2013–2022. Estimates from two‐way fixed‐effects models show that improved ESG performance is positively and significantly associated with greater green innovation. This relationship is mediated by reduced financing constraints and
Gulhayo Nusratova
wiley +1 more source
On the Efficient Use of the Informational Content of Estimating Equations: Implied Probabilities and Euclidean Empirical Likelihood [PDF]
A number of information-theoretic alternatives to GMM have recently been proposed in the literature. For practical use and general interpretation, the main drawback of these alternatives, particularly in the case of conditional moment restrictions, is ...
Hélène Bonnal, Éric Renault
core
To What Extent Does ESG Performance Influence Board Engagement in Acquisition Activity?
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT This study examines the relationship between boards and corporate acquisition activity. Specifically, we posit that boards with directors who have been politicians positively influence the propensity to pursue acquisitions and that ESG performance (divided into environmental, social, and governance scores) moderates this relationship.
Leticia Pérez‐Calero +4 more
wiley +1 more source
Board Governance as a Strategic Mechanism: Carbon Risk and Firm Performance
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT Carbon emissions are a major contributor to global warming and pose significant threats to the environment. In response to the urgency of climate change, firms are under increasing pressure to adopt policies that enhance environmental performance while reducing carbon risk.
Sarmad Ali +3 more
wiley +1 more source
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT National and supranational institutions are establishing emission trading systems and control schemes in an attempt to manage stakeholders' willingness to engage with regulatory systems and reduce greenhouse gas emissions (GHG). Nonetheless, despite the national and supranational focus on carbon neutrality, little research has been centered ...
Daniele Giordino +3 more
wiley +1 more source
Semantic indexing using GMM supervectors and tree-structured GMMs
Semantic indexing using GMM supervectors and tree-structured GMMsidentifier:oai:t2r2.star.titech.ac.jp ...
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