Results 181 to 190 of about 31,897 (265)

Protective Factors Associated With Perceived Risk of Exclusion From Education and Work Among Vocational Students

open access: yesJournal of Adolescence, EarlyView.
ABSTRACT Introduction Perceived risk of experiencing NEET status (Not in Education, Employment, or Training) reflects young people's sense of vulnerability in the transition from school to work. Identifying protective factors linked with lower perceived risk may help inform early prevention.
Kati Kajastus
wiley   +1 more source

Coupled Vibration Analysis of Rotor and Foundation Using Quasi-Modal Transformation. 1st Report. Complex Eigenvalue Analysis.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 2002
Toyomi YOSHIDA   +3 more
openaire   +2 more sources

A Consistent Heteroskedasticity‐Robust LM‐Type Specification Test for Semiparametric Models

open access: yesJournal of Applied Econometrics, EarlyView.
ABSTRACT This article develops a heteroskedasticity‐robust Lagrange Multiplier‐type specification test for semiparametric regression models. The test is able to detect a wide class of deviations from the null hypothesis. The test statistic is based on the estimates from the restricted semiparametric model, can be computed in a regression‐based way, and
Ivan Korolev
wiley   +1 more source

Nonlinear Stability in a Free Boundary Model of Active Locomotion. [PDF]

open access: yesArch Ration Mech Anal
Berlyand L, Safsten CA, Truskinovsky L.
europepmc   +1 more source

Forecasting Related Time Series

open access: yesJournal of Applied Econometrics, EarlyView.
ABSTRACT A collection of time series are “related” if they follow similar stochastic processes and/or they are statistically dependent. This paper proposes a related time series (RTS) forecasting model that exploits these relationships. The model's foundation is a set of univariate Gaussian autoregressions, one for each series, which are then augmented
Ulrich K. Müller, Mark W. Watson
wiley   +1 more source

Revisiting EWMA in High‐Frequency‐Based Portfolio Optimization: A Comparative Assessment

open access: yesJournal of Applied Econometrics, EarlyView.
ABSTRACT This paper compares the statistical and economic performance of state‐of‐the‐art high‐frequency (HF) based multivariate volatility models with a simpler, widely used alternative, the Exponentially Weighted Moving Average (EWMA) filter. Using over two decades of 100 U.S.
Laura Capera Romero, Anne Opschoor
wiley   +1 more source

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