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By drawing on the perceived organizational support (POS) theory and the extended job demands-resources model (JD-R model), the aim of this study is to investigate the influence of different levels of organizational support during change (i.e. organizational level, supervisory level, coworker level) on firm financial performance and to explore the role of employee work engagement.

Data were collected during the second outbreak of the COVID-19 pandemic in two waves, approximately 2 weeks apart. A total of 291 employees in the Greek telecommunication industry completed questionnaires examining the POS during change and consequently, their supervisors evaluated their work engagement. The research model was tested with the use of structural equation modeling.

The research findings note the importance of different levels of organizational support during change; they describe how each level influences employees' work engagement as well as they confirm that employee work engagement mediates the relationship between POS during change and firm financial performance. Theoretical and practical implications of these findings are discussed.

The results indicate that should firms manage to influence positively employees' work engagement by providing support at all levels during change, they may boost their financial performance.

The research findings provide new insights into how POS and work engagement may influence firm financial performance. The originality of this study lies in the finding that employees' work engagement mediates the relationship between POS during change and firm financial performance. Further, the study was carried out in the Greek telecommunication industry during the second outbreak of the COVID-19 pandemic.

This paper aims to explore the mechanisms by which employees’ happiness at work (HAW) can be promoted. Drawing on the social exchange theory (SET), this study examined the relationships among discretionary human resource (HR) practices, perceived organizational support (POS), meaning of work (MOW) and HAW.

A three-path mediation model was developed to test the proposed relationships. The data were collected from Pakistani business professionals (n = 361), and hypotheses were tested using the PROCESS macro for SPSS .

The results suggest that POS mediates the relationship between discretionary HR practices and HAW. Also, MOW mediated the relationship between discretionary HR practices and HAW. Hence, both POS and MOW were found to be independent mediators. Further, the data provided support for the serial mediation of POS and MOW in the relationship between discretionary HR practices and HAW.

This research provides insights to organizations and their management on how discretionary HR practices can enhance employees’ POS, MOW and HAW.

The findings show that discretionary HR practices are associated with employees’ HAW. In addition, two mediators (POS and MOW) were found to serially mediate the aforesaid relationships. These findings are novel, as no prior research has used this nascent methodological approach to deepen our understanding by examining the associations between discretionary HR practices, POS, MOW and employees’ HAW.

This study aims to examine the influence of perceived supervisor support (PSS) for strengths use on knowledge sharing (KS) intentions, mediated through work engagement and knowledge self-efficacy, based on the job demand-resources theory and the broaden and build theory.

Structural equation modeling and bootstrap analyses were performed to examine the research model using data derived from a two-wave questionnaire survey of 162 employees from five health-care organizations.

The results indicate that PSS for strengths use promoted KS intentions fully mediated through work engagement and subsequently through knowledge self-efficacy. However, there was no direct relationship between PSS for strengths use and KS intention.

The contribution of this research to the literature on KS is to find the effectiveness of a strengths-based approach in promoting KS intentions across boundaries and identifying mediating factors that link PSS for strengths use to KS intentions.