Results 191 to 200 of about 15,975 (254)
Flexible unimodal density estimation in hidden Markov models
Abstract Hidden Markov models (HMMs) are powerful tools for modelling time‐series data with underlying state structure. However, selecting appropriate parametric forms for the state‐dependent distributions is often challenging and can lead to model misspecification.
Jan‐Ole Fischer +5 more
wiley +1 more source
Embracing uncertainty in time: A Bayesian dynamic mixing model for isotopic diet estimation
Abstract Isotopic mixing models are powerful tools in ecology for estimating diets. Since their initial formulation, these models have evolved into two distinct branches: Bayesian mixing models and dynamic mixing models. Bayesian mixing models significantly improve uncertainty management but remain static assuming a stable state.
Emilie Cathelin +3 more
wiley +1 more source
Does Continuous Disclosure Improve Investment Efficiency? Evidence from a Unique Regulatory Setting
We examine the association between continuous disclosure and investment efficiency within the context of Australia's unique regulatory setting for continuous disclosure. Based on 8,527 firm‐year observations, we find that continuous disclosure is positively associated with investment efficiency and helps to mitigate both over‐investment and under ...
Sudipta Bose +3 more
wiley +1 more source
Monetary Policy, Investor Sentiment and Stock Price Bubble: Evidence From China
ABSTRACT The empirical results indicate that an increase in interest rates may stimulate a significant and persistent stock price bubble, which is consistent with rational asset price bubble theory. This finding suggests that central banks should implement anti‐turbulent monetary policy with caution, since inappropriate tightening may unintentionally ...
Jiahao Gong +3 more
wiley +1 more source
Robust discovery of mutational signatures using power posteriors. [PDF]
Xue C, Miller JW, Carter SL, Huggins JH.
europepmc +1 more source
Abstract Background and aims Within many alcohol prevention interventions, changes in alcohol‐related attitudes (ARA) are often proposed as precursors to changes in drinking behaviour. This study aimed to measure the longitudinal relationship between ARA and behaviour during the implementation of a large‐scale prevention trial.
Andrew Percy +6 more
wiley +1 more source
Abstract Background and aims On 9 June 2022, Thailand changed its cannabis legislation, expanding access to individuals aged >18 years. Evidence suggests that such changes could increase the risk of cannabis use and related harms, and could influence patterns of use of other substances among adolescents.
Sirada Puetpaiboon +7 more
wiley +1 more source
Joint modelling of longitudinal and survival data: incorporating delayed entry and an assessment of model misspecification. [PDF]
Crowther MJ +4 more
europepmc +1 more source
Abstract Aims To investigate whether the treatment effect of extended‐release buprenorphine (BUP‐XR) on opioid‐free days in opioid use disorder (OUD) is mediated by reductions in opioid craving and improvements in personal functioning. Design and setting Exploratory causal mediation analysis using VanderWeele's four‐way decomposition framework in a 24 ...
John Marsden +11 more
wiley +1 more source
Robust Estimation of Polyserial Correlation Coefficients: A Density Power Divergence Approach. [PDF]
Welz M.
europepmc +1 more source

