Results 31 to 40 of about 730,832 (262)

Dynamic Correlation Structure; Securities Risk and Return [PDF]

open access: yesJournal of Asset Management and Financing, 2019
Objective: Modelling dynamic nature of covariance of assets return almost always is a challenging area of finance. Econometrics models just pay attention to variance behavior longitudinally, however, core of numerous finance models need the analysis of ...
Maryam Davallou, marzieh khosravi
doaj   +1 more source

Modeling correlated human dynamics

open access: yesCoRR, 2010
We empirically study the activity patterns of individual blog-posting and find significant memory effects. The memory coefficient first decays in a power law and then turns to an exponential form. Moreover, the inter-event time distribution displays a heavy-tailed nature with power-law exponent dependent on the activity.
Peng Wang   +3 more
openaire   +2 more sources

The underlying dynamics of credit correlations [PDF]

open access: yesThe Journal of Credit Risk, 2007
We propose a hybrid model of portfolio credit risk where the dynamics of the underlying latent variables is governed by a one factor GARCH process. The distinctive feature of such processes is that the long-term aggregate return distributions can substantially deviate from the asymptotic Gaussian limit for very long horizons. We introduce the notion of
Arthur M. Berd   +2 more
openaire   +2 more sources

Dynamically emergent correlations

open access: yesEurophysics Letters
Abstract In this perspective article, we discuss the scenario of dynamically emergent correlation (DEC) arising in classical and quantum noninteracting systems when they are subjected to a common fluctuating stochastic environment. The key property of such systems is that the strong correlations between different particles emerge from
Majumdar, Satya N., Schehr, Gregory
openaire   +2 more sources

Multiscale Dynamic Correlation Analysis of Wind-PV Power Station Output Based on TDIC

open access: yesIEEE Access, 2020
The stochastic characteristics of wind power and photovoltaic (PV) make the resource allocation of power system difficult. Therefore, it is necessary to consider the correlation between the power generation of wind and PV power stations to avoid resource
Min Wang   +4 more
doaj   +1 more source

ON THE STATIONARITY OF DYNAMIC CONDITIONAL CORRELATION MODELS [PDF]

open access: yesEconometric Theory, 2014
We provide conditions for the existence and the uniqueness of strictly stationary solutions of the usual Dynamic Conditional Correlation GARCH models (DCC-GARCH). The proof is based on Tweedie’s (1988) criteria, after having rewritten DCC-GARCH models as nonlinear Markov chains.
Jean-David Fermanian, Hassan Malongo
openaire   +5 more sources

What Happened to the CER Market? A Dynamic Linkage Effect Analysis

open access: yesIEEE Access, 2020
The certified emission reduction (CER) carbon trading market promoted by the clean development mechanism (CDM) has become an important platform for the development of the international carbon market.
Yaqi Wu   +5 more
doaj   +1 more source

Dynamic Stock Correlation Network

open access: yesProcedia Computer Science, 2015
AbstractFinancial markets are the outcome of highly complex interactions among a number of agents. Such a complex system possibly contains all sorts of features, e.g., not only static but also dynamic. Here we study dynamic correlations hidden in the S&P 500 market by adopting a combined method of the Complex Principal Component Analysis (CPCA) and the
Yuta Arai   +2 more
openaire   +1 more source

PhotonSTR-18: A LabVIEW toolbox for photon correlation spectroscopy

open access: yesSoftwareX, 2021
We present PhotonSTR-T18, a LabVIEW based package for the calculation of intensity correlation and structure functions from the measurement of the time of arrival of scattered photons from soft materials.
Carlos A. García-Cadena   +2 more
doaj   +1 more source

Dynamical Correlations After a Quantum Quench [PDF]

open access: yesPhysical Review Letters, 2012
6 pages, 3 ...
Fabian H. L. Essler   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy