Results 11 to 20 of about 869,396 (264)

Conditional variances in UK regional house prices [PDF]

open access: yes, 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 ...
Cameron G.   +3 more
core   +2 more sources

Variance-of-Variance Risk Premium [PDF]

open access: yesReview of Finance, 2017
Abstract This article explores the premium for bearing the variance risk of the VIX index, called the variance-of-variance risk premium. I find that during the sample period from 2006 until 2014 trading strategies exploiting the difference between the implied and realized variance of the VIX index yield average excess returns of − 24.16%
openaire   +2 more sources

Fluctuations of two-time quantities and non-linear response functions [PDF]

open access: yes, 2010
We study the fluctuations of the autocorrelation and autoresponse functions and, in particular, their variances and co-variance. In a first general part of the Article, we show the equivalence of the variance of the response function with the second ...
Corberi, Federico   +3 more
core   +1 more source

Turbulence Measurements with Dual-Doppler Scanning Lidars

open access: yesRemote Sensing, 2019
Velocity-component variances can be directly computed from lidar measurements using information of the second-order statistics within the lidar probe volume.
Alfredo Peña, Jakob Mann
doaj   +1 more source

Variance Minimization – Relationship between Completion-Time Variance and Waiting-Time Variance [PDF]

open access: yesThe Journal of the Australian Mathematical Society. Series B. Applied Mathematics, 1996
AbstractThe completion-time variance (CTV) and the waiting-time variance (WTV) are two performance measures which are commonly used in optimization of single-machine scheduling systems. This paper shows that when the number of jobs is large the two measures are nearly equivalent in a probabilistic environment.
Zhou, S., Cai, X.
openaire   +1 more source

Comparison of different traits to evaluate the growth of bulls

open access: yesCzech Journal of Animal Science, 2008
The live weights of 8 243 performance-tested bulls from 100 to 400 days of age were analysed using random regression (RR) and single-trait animal models.
J. Přibyl   +3 more
doaj   +1 more source

Design of the Bartlett and Hartley tests for homogeneity of variances under indeterminacy environment

open access: yesJournal of Taibah University for Science, 2020
The existing Bartlett’s test and Hartley’s test under classical statistics can be applied only when all observations in the sample are determined, precise and determinate. In some complex situations, it may not possible to measure the exact observations.
Muhammad Aslam
doaj   +1 more source

Estimating genetic variance contributed by a quantitative trait locus: A random model approach.

open access: yesPLoS Computational Biology, 2022
Detecting quantitative trait loci (QTL) and estimating QTL variances (represented by the squared QTL effects) are two main goals of QTL mapping and genome-wide association studies (GWAS).
Shibo Wang, Fangjie Xie, Shizhong Xu
doaj   +1 more source

Modeling Conditional Volatility of Indian Banking Sector’s Stock Market Returns

open access: yesScientific Annals of Economics and Business, 2017
The study attempts to capture conditional variance of Indian banking sector’s stock market returns across the years 2005 to 2015 by employing different GARCH based symmetric and asymmetric models.
Singh Amanjot
doaj   +1 more source

Unobserved component models with asymmetric conditional variances [PDF]

open access: yes, 2006
Unobserved component models with GARCH disturbances are extended to allow for asymmetric responses of conditional variances to positive and negative shocks. The asymmetric conditional variance is represented by a member of the QARCH class of models.
Broto, Carmen, Ruiz, Esther
core   +7 more sources

Home - About - Disclaimer - Privacy