Results 41 to 50 of about 1,223,971 (333)

Estimating Time-Varying Beta of Price Limits and Its Applications in China Stock Market

open access: yesJournal of Applied Mathematics, 2013
This paper proposes an estimation method of time-varying beta of price limits. It uses China stock market trading data to estimate time-varying beta and researches on systemic risk in China stock market. By comparing prediction errors of market model, SS
Rongquan Bai, Zuoquan Zhang, Menggang Li
doaj   +1 more source

Sectoral Differences in the Choice of the Time Horizon during Estimation of the Unconditional Stock Beta

open access: yesInternational Journal of Financial Studies, 2016
The stock beta coefficient literature extensively discusses the proper methods for the estimation of beta as well as its use in asset valuation. However, there are fewer references with respect to the appropriate time horizon that investors should ...
Dimitrios Dadakas   +3 more
doaj   +1 more source

Long-Term Beta-Blocker Therapy in Patients With Stable Coronary Artery Disease After Percutaneous Coronary Intervention

open access: yesFrontiers in Cardiovascular Medicine, 2022
BackgroundIt is unclear whether beta-blocker treatment is advantageous in patients with stable coronary artery disease (CAD) who underwent percutaneous coronary intervention (PCI). We evaluated the clinical impact of long-term beta-blocker maintenance in
Seung-Jun Lee   +14 more
doaj   +1 more source

Time-Varying Betas Help in Asset Pricing: The Threshold CAPM [PDF]

open access: yesStudies in Nonlinear Dynamics & Econometrics, 2003
University of Pittsburgh, Department of Economics, caner@pitt.eduStudies in Nonlinear Dynamics & Econometrics is produced by The Berkeley ElectronicPress (bepress). http://www.bepress.com/sndeCopyright c 2003 by the authors.All rights reserved. No part of this publication may be reproduced, stored in a retrievalsystem, or transmitted, in any form or by
Akdeniz L., Altay-Salih, A., Caner, M.
openaire   +2 more sources

Continuous and Jump Betas: Implications for Portfolio Diversification

open access: yesEconometrics, 2016
Using high-frequency data, we decompose the time-varying beta for stocks into beta for continuous systematic risk and beta for discontinuous systematic risk. Estimated discontinuous betas for S&P500 constituents between 2003 and 2011 generally exceed
Vitali Alexeev   +2 more
doaj   +1 more source

A Bayesian Control Chart for Monitoring Process Variance

open access: yesApplied Sciences, 2021
Automation in the service industry is emerging as a new wave of industrial revolution. Standardization and consistency of service quality is an important part of the automation process.
Chien-Hua Lin   +3 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Adaptive Multi-target Tracking Algorithm with Unknown Detection Probability [PDF]

open access: yesJisuanji gongcheng, 2017
In order to accurately model the system detection probability in a complex background,a Multi-Target Tracking(MTT) method with unknown detection probability is proposed.The detection probability is modeled by the Time Varying AutoRegressive(TVAR) process.
LIU Jun,YUAN Peiyan,QIU Hao
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Exchange Rate Volatility Forecasting by Hybrid Neural Network Markov Switching Beta-t-EGARCH

open access: yesIEEE Access, 2020
The motivation of this study is built from the previous research to find a way to enhance the forecast of advanced and emerging market currency volatilities.
Ruofan Liao   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy