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21 – 30 of over 6000Niharika Thakur, Y.K. Awasthi, Manisha Hooda and Anwar Shahzad Siddiqui
Power quality issues highly affect the secure and economic operations of the power system. Although numerous methodologies are reported in the literature, flexible alternating…
Abstract
Purpose
Power quality issues highly affect the secure and economic operations of the power system. Although numerous methodologies are reported in the literature, flexible alternating current transmission system (FACTS) devices play a primary role. However, the FACTS devices require optimal location and sizing to perform the power quality enhancement effectively and in a cost efficient manner. This paper aims to attain the maximum power quality improvements in IEEE 30 and IEEE 57 test bus systems.
Design/methodology/approach
This paper contributes the adaptive whale optimization algorithm (AWOA) algorithm to solve the power quality issues under deregulated sector, which enhances available transfer capability, maintains voltage stability, minimizes loss and mitigates congestions.
Findings
Through the performance analysis, the convergence of the final fitness of AWOA algorithm is 5 per cent better than artificial bee colony (ABC), 3.79 per cent better than genetic algorithm (GA), 2,081 per cent better than particle swarm optimization (PSO) and fire fly (FF) and 2.56 per cent better than whale optimization algorithm (WOA) algorithms at 400 per cent load condition for IEEE 30 test bus system, and the fitness convergence of AWOA algorithm for IEEE 57 test bus system is 4.44, 4.86, 5.49, 7.52 and 9.66 per cent better than FF, ABC, WOA, PSO and GA, respectively.
Originality/value
This paper presents a technique for minimizing the power quality problems using AWOA algorithm. This is the first work to use WOA-based optimization for the power quality improvements.
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Chintal A. Desai and Khoa H Nguyen
The purpose of this paper is to identify three (maturity, agency, and information) effects that help explain the change in idiosyncratic volatility after a firm initiates a…
Abstract
Purpose
The purpose of this paper is to identify three (maturity, agency, and information) effects that help explain the change in idiosyncratic volatility after a firm initiates a dividend.
Design/methodology/approach
The paper uses a cross-sectional analysis where the standard errors are adjusted for heteroskedasticity. As for robustness check, the authors perform two-stage analysis to control for potential self-selection bias. The authors also control for 2003 Dividend Tax Cut effect, matching-firm volatility, and confounding events.
Findings
Using a sample of 688 dividend-initiating firms for a period of 1977 to 2010, the authors find evidence consistent with the hypotheses based on the maturity, agency, and information effects. The volatility changes upon the dividend initiation can be reliably explained by the changes in profit volatility and free cash flow per total assets, and whether the firm consummated a stock split prior to the dividend initiation. The information effect is also found to be economically significant.
Originality/value
By studying a firm’s decision to initiate a dividend and its impact on the change in its volatility, the research helps contribute to the payout policy and volatility literatures.
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Wooyoung (William) Jang and Kevin K. Byon
Grounded in the Unified Theory of Acceptance and Use of Technology 2 (UTAUT2) (Venkatesh et al., 2012), the purpose of this paper is to examine the antecedents and consequence…
Abstract
Purpose
Grounded in the Unified Theory of Acceptance and Use of Technology 2 (UTAUT2) (Venkatesh et al., 2012), the purpose of this paper is to examine the antecedents and consequence associated with esports gameplay by proposing the Esports Consumption (ESC) model, including six determinants of esports gameplay intention (hedonic motivation, habit, price value, perceived effort expectancy, social influence and flow) and behavioral consequence (media consumption intention of esports events) that were linked to esports gameplay.
Design/methodology/approach
The proposed model was tested using the data (n=348) that were collected from esports consumers at two points in time. Per the technology adoption theories (i.e. TAM, UTAUT2), the authors incorporated a temporal separation when measuring the relationship between playing intention and playing behavior. For the purpose of data analysis, CFA and SEM were used to examine the hypothesized model.
Findings
As a result, four determinants (i.e. hedonic motivation, price value, effort expectancy and flow) were identified as the critical factors influencing esports consumers’ esports gameplay intention. Furthermore, the bootstrap method procedure verified that a sequential relationship among esports gameplay intention, esports gameplay and media consumption of esports events.
Originality/value
Theoretically, it has developed a research model that explains various triggers resulting from esports gameplay intention, which is causally linked to esports gameplay and media consumption behavior. Practically, the primary implication has to do with providing information regarding esports consumers’ playing behavior with esports game publishers, which organize esports events and leagues.
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Hillol Bala, Viswanath Venkatesh, Daniel C. Ganster and Arun Rai
Although research has suggested that enterprise system (ES) implementations have major impacts on employee job characteristics and outcomes, there has been limited research that…
Abstract
Purpose
Although research has suggested that enterprise system (ES) implementations have major impacts on employee job characteristics and outcomes, there has been limited research that has examined the impacts of ES implementations on interpersonal relationships over time. Building on and extending recent studies that have examined changes in employee job characteristics and outcomes during an ES implementation, this research examined the nature, extent, determinants and outcomes of changes in an important interpersonal relationship construct—coworker exchange (CWX)—following an ES implementation. CWX is considered a critical aspect of employees' job and an important determinant of their success in the workplace. Drawing on social exchange theory (SET), the authors theorize that employees will perceive a change in CWX following an ES implementation.
Design/methodology/approach
A longitudinal field study over a period of 6 months among 249 employees was conducted. Latent growth modeling was used to analyze the data.
Findings
The authors found that employees' work process characteristics, namely perceived process complexity, perceived process rigidity and perceived process radicalness, significantly explained change, i.e. decline in our case, in CWX during the shakedown phase of an ES implementation. The decreasing trajectory of change in CWX led to declining job performance and job satisfaction.
Originality/value
The role of CWX and its importance in the context of ES implementations is a key novel element of this work.
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Mónica Cantó, Marta Frasquet and Gil-Saura Irene
The purpose of this paper is to define the design orientation construct, proposing a theoretical framework for its analysis and a validated tool for its measurement.
Abstract
Purpose
The purpose of this paper is to define the design orientation construct, proposing a theoretical framework for its analysis and a validated tool for its measurement.
Design/methodology/approach
The process of scale development follows the recommendations of DeVellis (1991). After qualitative research with experts, quantitative research was performed on a sample of 209 SMEs in the furniture and lighting sectors. The results, based on the use of the confirmatory factor analysis technique, yielded a measurement scale with solid psychometric properties, thus confirming its reliability and validity.
Findings
The resulting scale comprised 19 items grouped into seven dimensions: awareness of the benefits of design, design sensibility, basic design skills, specialized design skills, involving others, design organization and innovation skills.
Practical implications
The instrument can be used to quantify the degree of design orientation in a company, thus enabling cross-sectional and longitudinal diagnoses.
Originality/value
By operationalizing the design orientation construct, this scale serves as a starting point for future developments in the field of business design and design management.
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Mary B. Curtis and Elizabeth A. Payne
The authors aim to examine whether the well-established unified theory of acceptance and use of technology can be effectively adapted for use in an external audit setting and…
Abstract
Purpose
The authors aim to examine whether the well-established unified theory of acceptance and use of technology can be effectively adapted for use in an external audit setting and whether the re-specified model holds under different levels of budget pressure.
Design/methodology/approach
This paper takes the form of a case study/questionnaire with Lisrel path modelling.
Findings
Results support the re-specified model.
Research limitations/implications
The model should aid audit research by providing a platform for new research to explore more specific solutions to technology reluctance. The authors extend general TAM research through additional exploration of the theory and impact of social influence, a determinant that has shown inconsistent tendencies in prior studies. The authors address several limitations in past TAM research including the use of student participants and self-selection bias.
Practical implications
Firms must understand the implications of their policies and culture on the intention of audit teams to voluntarily utilize software. Technology can improve the efficiency and effectiveness of audit procedures, aid in the identification of fraud and lower litigation costs. Accounting firms have invested in the development of audit testing software and can only recoup these investments if the software is used.
Originality/value
The study is the first to completely model the intention to use technology in an external audit engagement with consideration of budget influences.
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