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1 – 10 of 10Ismail Abiodun Sulaimon, Hafiz Alaka, Razak Olu-Ajayi, Mubashir Ahmad, Saheed Ajayi and Abdul Hye
Road traffic emissions are generally believed to contribute immensely to air pollution, but the effect of road traffic data sets on air quality (AQ) predictions has not been fully…
Abstract
Purpose
Road traffic emissions are generally believed to contribute immensely to air pollution, but the effect of road traffic data sets on air quality (AQ) predictions has not been fully investigated. This paper aims to investigate the effects traffic data set have on the performance of machine learning (ML) predictive models in AQ prediction.
Design/methodology/approach
To achieve this, the authors have set up an experiment with the control data set having only the AQ data set and meteorological (Met) data set, while the experimental data set is made up of the AQ data set, Met data set and traffic data set. Several ML models (such as extra trees regressor, eXtreme gradient boosting regressor, random forest regressor, K-neighbors regressor and two others) were trained, tested and compared on these individual combinations of data sets to predict the volume of PM2.5, PM10, NO2 and O3 in the atmosphere at various times of the day.
Findings
The result obtained showed that various ML algorithms react differently to the traffic data set despite generally contributing to the performance improvement of all the ML algorithms considered in this study by at least 20% and an error reduction of at least 18.97%.
Research limitations/implications
This research is limited in terms of the study area, and the result cannot be generalized outside of the UK as some of the inherent conditions may not be similar elsewhere. Additionally, only the ML algorithms commonly used in literature are considered in this research, therefore, leaving out a few other ML algorithms.
Practical implications
This study reinforces the belief that the traffic data set has a significant effect on improving the performance of air pollution ML prediction models. Hence, there is an indication that ML algorithms behave differently when trained with a form of traffic data set in the development of an AQ prediction model. This implies that developers and researchers in AQ prediction need to identify the ML algorithms that behave in their best interest before implementation.
Originality/value
The result of this study will enable researchers to focus more on algorithms of benefit when using traffic data sets in AQ prediction.
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Ernesto Tavoletti, Eric David Cohen, Longzhu Dong and Vas Taras
The purpose of this study is to test whether equity theory (ET) – which posits that individuals compare their outcome/input ratio to the ratio of a “comparison other” and classify…
Abstract
Purpose
The purpose of this study is to test whether equity theory (ET) – which posits that individuals compare their outcome/input ratio to the ratio of a “comparison other” and classify individuals as Benevolent, Equity Sensity, and Entitled – applies to the modern workplace of global virtual teams (GVT), where work is mostly intellectual, geographically dispersed and online, making individual effort nearly impossible to observe directly.
Design/methodology/approach
Using a sample of 1,343 GVTs comprised 6,347 individuals from 137 countries, this study tests three ET’s predictions in the GVT context: a negative, linear relationship between Benevolents’ perceptions of equity and job satisfaction in GVTs; an inverted U-shaped relationship between Equity Sensitives’ perceptions of equity and job satisfaction in GVTs; and a positive, linear relationship between Entitleds’ perceptions of equity and job satisfaction in GVTs.
Findings
Although the second prediction of ET is supported, the first and third have statistically significant opposite signs.
Practical implications
The research has important ramifications for management studies in explaining differences in organizational behavior in GVTs as opposed to traditional work settings.
Originality/value
The authors conclude that the main novelty with ET in GVTs is that GVTs are an environment stingy with satisfaction for “takers” (Entitleds) and generous in satisfaction for “givers” (Benevolents).
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Justice Mensah, Kwesi Amponsah-Tawiah and Nana Kojo Ayimadu Baafi
This study aims to extend the literature on psychological contracts, employee mental health, self-control and equity sensitivity among employees in Ghana.
Abstract
Purpose
This study aims to extend the literature on psychological contracts, employee mental health, self-control and equity sensitivity among employees in Ghana.
Design/methodology/approach
Data for this study came from a sample of 484 employees from an organisation in the telecommunication sector of Ghana. The details of the study were discussed with employees after which they were given the choice to participate in the study.
Findings
The present study found that psychological contract breach is directly associated with mental health and indirectly related to mental health through equity sensitivity and self-control.
Originality/value
The findings suggest that psychological contracts are important aspects of the employment relationship that could be used to enhance employee mental health. Furthermore, enhancing employees’ self-control and resolving issues of individuals high on equity sensitivity are effective ways that organisations can deploy to sustain mental health in the face of psychological contract breaches.
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Cen April Yue, Yufan Sunny Qin and Linjuan Rita Men
This study is designed to bridge a gap in the existing leadership communication literature by delving into lesser-explored facets of the field. It particularly concentrates on…
Abstract
Purpose
This study is designed to bridge a gap in the existing leadership communication literature by delving into lesser-explored facets of the field. It particularly concentrates on investigating how the verbal aggressiveness of supervisors influences various aspects of the workplace, including workplace emotional culture, the quality of employee–organization relationships (EORs) and the prevalence of counterproductive work behaviors (CWB).
Design/methodology/approach
This study employed a quantitative research design to investigate the impact of supervisors' verbal aggressiveness on employee and organizational outcomes. The data were collected from 392 full-time employees across various organizations and industries in the USA using a self-report questionnaire. The researchers used structural equation modeling (SEM) to analyze the data and test hypotheses.
Findings
The findings of this study showed that supervisors' verbal aggressiveness had a significant positive association with negative emotional culture and employee CWB. However, it had no direct impact on employee–organization relationships. The effect of supervisor verbal aggressiveness on employee CWB was found to be mediated by a negative team-level emotional culture.
Originality/value
This study advances the literature on leadership communication by highlighting the detrimental influence of the dark side of leadership communication. More specifically, by identifying negative emotional culture and employee CWB as the direct outcomes of supervisor verbal aggressiveness, the authors add to the existing theoretical knowledge on verbal aggressiveness in the workplace. Additionally, this study provides empirical evidence of the impact of a negative emotional culture on eliciting employees' CWBs and diminishing relationship quality, adding to the body of knowledge on why managing emotional culture is crucial for organizations and workgroups.
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The study aims to examine the indirect relationships via application (app) brand self-relevance emotions and self-relevance that underlie the relationships between perceived value…
Abstract
Purpose
The study aims to examine the indirect relationships via application (app) brand self-relevance emotions and self-relevance that underlie the relationships between perceived value of mobile apps and (brand) love with respect to mobile apps. The study further investigates the moderating role of user–app relationship duration in the formation process of brand love for mobile apps from a dynamic and long-term perspective.
Design/methodology/approach
A multiple moderated-mediation model is developed and empirically tested with a sample of 396 users of popular Chinese mobile educational apps.
Findings
The study reveals that utilitarian value exhibits positive indirect relationships with brand love for mobile apps through increased positive self-relevance emotions. All three types of perceived value of mobile apps (utilitarian, hedonic and social) affect app brand love positively via self-relevance. These three types of perceived value were found to be serially linked to brand love through self-relevance and self-relevance emotions. Furthermore, empirical evidence is found for the moderating effects of user–app relationship duration.
Originality/value
By testing mechanisms simultaneously in an integrative model, this study investigates the reasons for app brand love that attract a user into a lasting relationship with an app and extends knowledge of the app brand love building process in inducing strong and positive brand–self connections. Our study also makes practical contributions by offering insights into delivering the most desired benefits to mobile app users according to different contextual conditions, in order to attract and retain users in a more cost-effective manner.
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Amitabh Anand, Jessica Doll and Prantika Ray
This study aims to develop and validate two scales: quiet quitting (QQ), measuring individual-level work disengagement, low organisational commitment and not going above and…
Abstract
Purpose
This study aims to develop and validate two scales: quiet quitting (QQ), measuring individual-level work disengagement, low organisational commitment and not going above and beyond in work, and quiet firing (QF), measuring employee perceptions of the degree to which their managers devalue them and when organisations intentionally create a situation to make them quit.
Design/methodology/approach
The scale development process involved item generation through literature search, review and interviews with working executives. The scales were then tested online by 264 participants from India.
Findings
In the quantitative analysis, the QQ and QF scales have good psychometric properties when tested with factor analysis, reliability analysis and Cronbach’s alpha. Furthermore, the convergent, discriminant and predictive validity of outcome constructs also showed significance.
Originality/value
This study found that the QQ and QF scales are highly reliable and exhibit good psychometric properties. To the best of the authors’ knowledge, this is one of the first studies to empirically develop and test the QQ and QF constructs and offer implications for organisations and managers.
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Xingxin Zhao, Jiafu Su, Taewoo Roh, Jeoung Yul Lee and Xinrui Zhan
The purpose of this study is to examine the impact of technological diversification (TD) on enterprise innovation performance, meanwhile focusing on the moderating effects of…
Abstract
Purpose
The purpose of this study is to examine the impact of technological diversification (TD) on enterprise innovation performance, meanwhile focusing on the moderating effects of various organizational slack (i.e. absorbed and unabsorbed slack) and ownership types (i.e. state-owned or privately-owned) in the context of Chinese listed firms.
Design/methodology/approach
This study formulates five hypotheses based on organization and agency theories. Our empirical analysis employs a fixed-effect regression estimator with a unique panel dataset of Chinese-listed manufacturing firms and 13,566 firm-year observations over 9 years from 2012 to 2020.
Findings
Our findings show that an inverted U-shaped relationship exists between TD and innovation performance, varying with different types of organizational slack and ownership. In state-owned enterprises (SOEs), unabsorbed slack negatively moderates the inverted U-shaped relationship; however, in privately-owned enterprises (POEs), this relationship is positively moderated. Although absorbed slack has negative moderating effects in both SOEs and POEs, its impact is only significant for POEs.
Practical implications
Our results imply that organizational slack has a contrasting impact on the relationship between TD and innovation performance when the type of ownership varies. Therefore, the managers that intend to achieve optimal innovation performance through TD should understand how organizational slack can be leveraged.
Originality/value
This study contributes to the existing literature by applying the relationship between TD and innovative performance to the transition economy, as well as examining the double-edged sword impact of state ownership on firm innovation performance.
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Megan M. Walsh, Erica L. Carleton, Julie Ziemer and Mikaila Ortynsky
The purpose of this study was to examine whether remote work moderates the mediated relationship between leadership behavior (transformational leadership and leader incivility)…
Abstract
Purpose
The purpose of this study was to examine whether remote work moderates the mediated relationship between leadership behavior (transformational leadership and leader incivility), followers' self-control, and work-life balance.
Design/methodology/approach
The authors conducted a three-wave, time lagged study of 338 followers. Drawing on social information processing theory, a moderated mediation model was proposed: it was hypothesized that remote work strengthens the relationship between leadership behavior (transformational leadership and leader incivility), follower self-control, and subsequent work-life balance (moderated mediation). The theoretical model was tested using OLS regression in SPSS.
Findings
The results show that working remotely strengthens the mediated relationships between leadership behavior, self-control, and work-life balance.
Practical implications
Organizations need to consider the interaction between remote work and leadership. Leader behaviors have a stronger relationship with follower self-control and work-life balance when the frequency of remote work is higher, so it is important to increase transformational leadership and reduce leader incivility in remote contexts. Leadership training programs and respectful workplace initiatives should be considered.
Originality/value
This study demonstrates the importance of leader behaviors for followers' self-control and work-life balance in relation to remote work. This study is the first to examine the boundary condition of remote work in relation to leadership behavior, follower self-control, and work-life balance.
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Saif Mahdi Muslim Al-Ameedee, Mahdi Moradi and Mahdi Salehi
Ethical concerns in the field of trade and business and research efforts in the area of management and implementation of ethical standards in the organizational chain in the…
Abstract
Purpose
Ethical concerns in the field of trade and business and research efforts in the area of management and implementation of ethical standards in the organizational chain in the current situation, mainly due to the impact on the performance and procedures of organizations, and, finally, the effect on the views and attitudes of stakeholders and users of corporate information have become critical. Therefore, this study aims to investigate the impact of business ethics on stress, anxiety and depression and the success of auditors in Iran and Iraq.
Design/methodology/approach
The study’s statistical population includes all partners, managers and auditors working in auditing firms. Three hundred sixty-five questionnaires were completed by Iranian respondents and 250 questionnaires by Iraqi respondents in 2021. Also, the analysis of variance and regression of ordinary least squares have been used for data analysis and testing of hypotheses.
Findings
The research results show a negative and significant relationship between the results of business ethics and stress, anxiety and depression of auditors in Iran and Iraq and a positive relationship between business ethics and auditors’ success in Iran and Iraq.
Originality/value
As the current research was conducted in emerging financial markets such as Iran and Iraq, which are highly competitive, along with special economic conditions, and as the occupation of the ISIS terrorist group, the civil wars in Iraq, the world’s severe economic sanctions against Iran and following the global crisis of COVID-19, both countries have had special conditions. Therefore, the current research can bring helpful information to the readers and help everyone develop science and knowledge in this field.
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Roosa Amanda Lambin and Milla Nyyssölä
Mainland Tanzania has seen two decades of significant social policy reforms and transformations in its social and economic structures, whilst the country continues to grapple with…
Abstract
Purpose
Mainland Tanzania has seen two decades of significant social policy reforms and transformations in its social and economic structures, whilst the country continues to grapple with persisting gender inequalities. This article examines Tanzania's social policy developments from a gender perspective. The authors analyse the level, reach and quality of social policy delivery to working-age women across the areas of health policy, social protection and employment policy during 2000–2021.
Design/methodology/approach
The article draws on qualitative research deploying the scoping review method. The data consist of diverse secondary materials, including academic publications, government policy documents, relevant statistics and other types of “grey” literature.
Findings
Tanzania has made significant advancements in the legal frameworks around welfare provision and has instituted increasingly gender-responsive government policy plans. The health and social protection sectors, in particular, have witnessed the introduction of large-scale measures expanding social policy implementation. However, social policy delivery remains two-tiered, with differences in provisions for women in the formal and informal sectors.
Originality/value
Social policy delivery and implementation have increased and diversified in Sub-Saharan Africa (SSA) during the new millennium, with a growing integration of gender-specific policy objectives. However, limited social policy scholarship has focused on the gendered effects of broader social policy models in SSA. The article remedies the concomitant knowledge gaps by examining various social policies and their impacts on working-age women in Mainland Tanzania. The authors also engage with the theoretical welfare regime literature and present an analytical framework for gender-sensitive assessment of emerging social policy models in the Global South.
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