Results 221 to 230 of about 451,378 (309)

Time‐Varying Structural Approximate Dynamic Factor Model

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT This study proposes a time‐varying structural approximate dynamic factor (TVS‐ADF) model by extending the approximate dynamic factor (ADF) model in state‐space form. The TVS‐ADF model considers time‐varying coefficients and a time‐varying variance–covariance matrix of its innovation terms to capture complex economic dynamics.
Ziyan Zhao, Qingfeng Liu
wiley   +1 more source

Discrete distributions are learnable from metastable samples. [PDF]

open access: yesNat Commun
Jayakumar A   +3 more
europepmc   +1 more source

State‐Dependent Market (In)Efficiency in Cryptocurrency Markets

open access: yesJournal of Futures Markets, EarlyView.
ABSTRACT This paper develops a meta‐learning framework to test whether cryptocurrency market inefficiency is static or state‐dependent. To resolve competing claims between the Efficient and Adaptive Market Hypotheses (AMH), we construct an adaptive trading strategy using high‐frequency data for 50 major cryptocurrencies.
Sasan Barak   +2 more
wiley   +1 more source

Effectiveness of a Primary‐Care‐Centered Integrated Care Intervention for Stratified Cardiovascular Risk Control in China: Study Protocol for a Pragmatic Cluster Randomized Controlled Trial

open access: yesHealth Care Science, EarlyView.
This study developed a multifaceted intervention to strengthen primary care for cardiovascular risk management by leveraging both primary care and county hospitals in rural China. The purpose of this multicentre, cluster‐randomized controlled trial is to evaluate the effectiveness of intervention on the prevention of cardiovascular risks among patients
Weijia Lu   +6 more
wiley   +1 more source

Nonparametric Regression for Cost‐Effectiveness Analyses With Observational Data—A Tutorial

open access: yesHealth Economics, EarlyView.
ABSTRACT Healthcare decision‐making often requires selecting among multiple treatment options under budget constraints, particularly when one option is more effective but also more costly. Cost‐effectiveness analysis (CEA) provides a framework for evaluating whether the health benefits of a treatment justify its additional costs.
Jonas Esser   +3 more
wiley   +1 more source

Reconstructing Skull Base Reconstruction: The State of the Art

open access: yesHead &Neck, EarlyView.
ABSTRACT Background Skull base reconstruction has continued to evolve in parallel with advances in endoscopic skull base ablation in order to accomplish the goal of restoring larger and more complicated defects between the cranial and nasal cavities while balancing morbidity, cost, and recovery.
Muhammad El Shatanofy   +2 more
wiley   +1 more source

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