Results 81 to 90 of about 3,114 (262)

Empirical performance of GARCH, GARCH-M, GJR-GARCH and log-GARCH models for returns volatility

open access: yesJournal of Physics: Conference Series, 2019
Abstract Volatility plays an important role in the field of financial econometrics as one of the risk indicators. Many various models address the problem of modeling the volatilities of financial asset returns. This study provides a new empirical performance comparison of the four different GARCH-type models, namely GARCH, GARCH-M, GJR ...
D B Nugroho   +5 more
openaire   +1 more source

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth   +20 more
wiley   +1 more source

Scalable Separation and Purification of M13‐Bacteriophage‐Derived Particles Containing Artificial Single‐Stranded DNA Produced by Escherichia coli

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Single‐stranded DNA (ssDNA) solutions are promising innovations shaping the future of genetic research and medical therapies. In principle, biotechnological mass production of ssDNA can be achieved using Escherichia coli in a high‐cell density fed‐batch process by secreting phagemid particles derived from the filamentous M13 bacteriophages ...
Nathalie Hafner   +4 more
wiley   +1 more source

M-ESTIMATION IN GARCH MODELS [PDF]

open access: yesEconometric Theory, 2008
This paper derives asymptotic normality of a class ofM-estimators in the generalized autoregressive conditional heteroskedastic (GARCH) model. The class of estimators includes least absolute deviation and Huber's estimator in addition to the well-known quasi maximum likelihood estimator.
openaire   +1 more source

Do Commodity Prices and Energy Markets Drive Asymmetric Volatility in Biodiversity Finance?

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study examines symmetric and asymmetric volatility spillovers among biodiversity finance, commodity prices, and energy markets using daily data from 2019 to 2025. We apply the Diebold–Yilmaz time–domain connectedness model, Baruník–Křehlík frequency–domain decomposition, and an asymmetric spillover framework.
Ijaz Younis   +4 more
wiley   +1 more source

Assessing Financial Stability in Turbulent Times: A Study of Generalized Autoregressive Conditional Heteroskedasticity-Type Value-at-Risk Model Performance in Thailand’s Transportation Sector during COVID-19

open access: yesRisks
The Value-at-Risk (VaR) metric serves as a pivotal tool for quantifying market risk, offering an estimation of potential investment losses. Predominantly employed within financial sectors, it aids in adhering to regulatory mandates and in devising ...
Danai Likitratcharoen   +1 more
doaj   +1 more source

Exploring the Financial Perspective in Sustainability Strategies: The Case of the Tourism Industry

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study examines the relationship between sustainability and corporate financial performance in the tourism sector. To address the mixed and inconclusive evidence in prior research, we develop an integrated theoretical framework that combines stakeholder theory, the resource‐based view, legitimacy theory, and agency theory and distinguishes
Rebecca Levy Orelli   +3 more
wiley   +1 more source

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