Results 31 to 40 of about 111,969 (307)

Individual mean-variance relation and stock-level investor sentiment

open access: yesJournal of Business Economics and Management, 2017
This research studies the effect of stock-level investor sentiment on individual stock returns’ mean-variance relation. Using unique buy and sell volume data of retail investors in Korean stock market, we find that a positive mean-variance relation is ...
Jun Sik Kim, Da-Hea Kim, Sung Won Seo
doaj   +1 more source

Short-term Shocks and Long-term Relationships of Interdependencies Among Central European Capital Markets

open access: yesEconomics & Sociology, 2017
The article focuses on the problem of interdependences among Central European capital markets. The main aim of this research is to identify long-term interdependences among Austrian, Czech, Hungarian and Polish capital markets and the market of Germany ...
Michał Bernard Pietrzak   +4 more
doaj   +1 more source

Conditional Variances in UK Regional House Prices [PDF]

open access: yesSpatial Economic Analysis, 2010
The returns of house price indices for the 13 UK regions are modelled using time series processes, including conditional variances. The first conclusion is that the UK follows the USA, with some regions displaying time-varying variances and others with constant variances.
openaire   +1 more source

GARCH based artificial neural networks in forecasting conditional variance of stock returns

open access: yesCroatian Operational Research Review, 2014
Portfolio managers, option traders and market makers are all interested in volatility forecasting in order to get higher profits or less risky positions.
Josip Arnerić   +2 more
doaj   +1 more source

Frequentist Conditional Variance for Nonlinear Mixed-Effects Models

open access: yesJournal of Statistical Theory and Practice, 2022
AbstractNonlinear mixed-effects models are commonly used in fisheries and ecological studies to account for complex relationships and dependencies in data. These models involve both fixed parameters to estimate and random-effects (REs) to predict. This paper addresses the inferential setting involving repeated sampling of the data but conditional on ...
Nan Zheng, Noel Cadigan
openaire   +1 more source

Econometric modeling of euro, British pound and Japanese yen exchange rates against dollar: Multivariate GARCH approach [PDF]

open access: yesBankarstvo, 2017
This paper examines the comparative volatility of major world currencies (the euro, British pound and Japanese yen) against the US dollar. The multivariate diagonal GARCH BEKK model was applied in the study.
Kovačević Radovan
doaj  

About the benefits of poststratification in forest inventories

open access: yesJournal of Forest Science, 2007
A large virtual population is created based on the GIS data base of a forest district and inventory data. It serves as a population where large scale inventories with systematic and simple random poststratified estimators can be simulated and the gains ...
J. Saborowski, J. Cancino
doaj   +1 more source

Generating group-level scores under response accuracy-time conditional dependence

open access: yesLarge-scale Assessments in Education, 2022
The present paper investigates and examines the conditional dependencies between cognitive responses (RA; Response Accuracy) and process data, in particular, response times (RT) in large-scale educational assessments.
Hyo Jeong Shin   +2 more
doaj   +1 more source

What to Do When Medical Evidence Can Only Be Generated Through Routine Data: An Example From Pediatric Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Children undergoing allogeneic stem cell transplantation often receive off‐label rituximab treatment for Epstein–Barr virus reactivation, using adult dosing without pediatric evidence. This project aims to develop a clinical decision support tool (CDSS) that provides evidence‐based dosing scenarios by analyzing real‐world patient data.
Birgit Burkhardt   +2 more
wiley   +1 more source

Prognostic Impact of Treatment Modalities, Including Targeted Compartmental Radio‐Immunotherapy, in a Cohort of Neuroblastoma Patients With CNS Metastases at Relapse

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Neuroblastoma (NB) with central nervous system (CNS) metastases is rare at diagnosis, but occurs more often during relapse/progression. Patients with CNS metastases face a dismal prognosis, with no standardized curative treatment available.
Vicente Santa‐Maria Lopez   +13 more
wiley   +1 more source

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