Results 61 to 70 of about 19,704 (219)

Back to Work! Perceived Overqualification, Proactive Helping Behaviors, and Work Adjustment Among Reentering Mothers

open access: yesJournal of Organizational Behavior, EarlyView.
ABSTRACT In the present study, we investigate the impact of perceived overqualification on the return‐to‐work process following maternity leave. Based on Person‐Environment (P‐E) fit theory's underutilized carryover mechanism, we hypothesized that returning mothers experiencing perceived overqualification would “carry over” their excess abilities to ...
Lisa Boenke   +4 more
wiley   +1 more source

Relationship between degree of efficiency and prediction in stock price changes

open access: yes, 2007
This study investigates empirically whether the degree of stock market efficiency is related to the prediction power of future price change using the indices of twenty seven stock markets.
Eom, Cheoljun   +2 more
core   +1 more source

Rough Volterra equations 1: the algebraic integration setting [PDF]

open access: yes, 2008
We define and solve Volterra equations driven by an irregular signal, by means of a variant of the rough path theory called algebraic integration. In the Young case, that is for a driving signal with H\"older exponent greater than 1/2, we obtain a global
Deya, Aurélien, Tindel, Samy
core   +5 more sources

Corporate Psychopaths as Risk Factors: The Role of Managerial Control and Competition for Risk Governance

open access: yesStrategic Change, EarlyView.
ABSTRACT The increasing prevalence of corporate scandals and dysfunction linked to psychopathic leaders has prompted significant research into the drivers and effects of psychopathy in business. This paper examines corporate psychopathy, focusing on individuals with extreme selfishness, callousness, and manipulative behavior who often achieve ...
Florian Fuchs
wiley   +1 more source

Dynamic Hurst Exponent in Time Series

open access: yes, 2019
The market efficiency hypothesis has been proposed to explain the behavior of time series of stock markets. The Black-Scholes model (B-S) for example, is based on the assumption that markets are efficient. As a consequence, it is impossible, at least in principle, to "predict" how a market behaves, whatever the circumstances.
Campos, Carlos Arturo Soto   +2 more
openaire   +2 more sources

Exponential Stability of Higher Order Fractional Neutral Stochastic Differential Equation Via Integral Contractors

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 6, Page 6425-6446, April 2025.
ABSTRACT The well‐posedness results for mild solutions to the fractional neutral stochastic differential system with Rosenblatt process with Hurst index Ĥ∈12,1$$ \hat{H}\in \left(\frac{1}{2},1\right) $$ is discussed in this article. To demonstrate the results, the concept of bounded integral contractors is combined with the stochastic result and ...
Dimplekumar N. Chalishajar   +3 more
wiley   +1 more source

Spectrum-based estimators of the bivariate Hurst exponent [PDF]

open access: yesPhysical Review E, 2014
We introduce two new estimators of the bivariate Hurst exponent in the power-law cross-correlations setting -- the cross-periodogram and local $X$-Whittle estimators -- as generalizations of their univariate counterparts. As the spectrum-based estimators are dependent on a part of the spectrum taken into consideration during estimation, a simulation ...
openaire   +3 more sources

Horizons and Challenges: An Overview of Strategies for Circular Economy Education in Schools

open access: yesSustainable Development, EarlyView.
ABSTRACT Education is fundamental to preparing future professionals for the transition to a circular economy (CE), and it requires the development of competences from the earliest stages of schooling. Nevertheless, teachers continue to face challenges in integrating the circular economy into classroom practice. This article presents a literature review
Maiara Lais Marcon, Simone Sehnem
wiley   +1 more source

The effect of round-off error on long memory processes

open access: yes, 2013
We study how the round-off (or discretization) error changes the statistical properties of a Gaussian long memory process. We show that the autocovariance and the spectral density of the discretized process are asymptotically rescaled by a factor smaller
La Spada, Gabriele, Lillo, Fabrizio
core   +1 more source

From armed roots to airline routes in South America: A dual imprinting perspective

open access: yesStrategic Management Journal, EarlyView.
Abstract Reserch Summary We propose that founding partner relationships can leave distinct imprints on organizations that differ in durability and in how they respond to subsequent changes involving the founding partner. Examining South American airlines founded between 1919 and 1984, we argue and find that such relationships simultaneously create an ...
Kunyuan Qiao   +2 more
wiley   +1 more source

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