PurposeThe objective of this research is to examine the mediating role of employees' well-being in the workplace in the relationship between the dimensions of social capital, namely structural, relational and cognitive social capital and knowledge sharing, as well as the moderating role of enterprise social networks between knowledge sharing and employees' well-being.Design/methodology/approachA quantitative approach was performed within a sample of 168 middle managers working in knowledge-intensive firms in Tunisia. The Partial Least Squares method was used to analyze the data collected.FindingsResults highlight the importance of the dimensions of social capital as a lever for boosting knowledge sharing. It also reveals that employees' well-being plays a mediating role in the link between structural and relational social capital and knowledge sharing. Moreover, findings show that while enterprise social networks use does not moderate the relationship between employees' well-being and knowledge sharing, it has a positive and significant effect on knowledge sharing.Originality/valueOn the basis of a socio-technical perspective of knowledge management, this research pioneers the examination of the mediating effect of employees' well-being in the link between dimensions of social capital and knowledge sharing and the moderating role of enterprise social networks use within knowledge-intensive firms. Findings of this study may help managers of knowledge-intensive firms in boosting knowledge sharing within organizations, in improving knowledge workers' well-being and thus in motivating and retaining these talented employees.

Purpose The purpose of this paper is twofold: first, the authors empirically examine the effect of the perceived values of mobile banking (MB) applications on customers’ e-trust, e-satisfaction and e-loyalty and second, the authors investigate the moderating role of customers’ age in the relationship between perceived value of MB and e-trust. Design/methodology/approach A survey was conducted on a sample of 361 Tunisian banks’ customers using mobile applications. Structural equation modeling method was performed to test the research hypotheses. Findings The results of this research revealed that quality, price and emotional perceived values’ dimensions of MB applications are predictors of customers’ e-trust. Within this spectrum, age acts as a moderator in these latter relationships. Findings also suggested that e-trust has positive effects on e-satisfaction and e-loyalty. Practical implications This paper presented a reading grid for bank marketers allowing them to identify the levers they must focus their efforts on so as to retain the customers using MB applications. It also permits them to identify the needs and values of three generation of customers, namely baby boomers, generation X and generation Y, so that they can offer better services for each group. Originality/value This paper sheds light on an innovative and unexplored topic in the literature. The authors broaden understanding of the relationship between the perceived values of MB applications, e-loyalty, e-trust and e-satisfaction. Research devoted to investigate these different links through an integrative model does exist, yet embryonic. This study also highlights differences between three group of customer, namely baby boomers, generation X and generation Y in terms of perceived values that builds their trust in the context of MB applications use.

Purpose The purpose of this study is to examine the effect of the transformational and transactional leadership styles and its sub-dimensions on exploitative and exploratory innovations. The authors deepened the analysis by highlighting the contribution of ambidextrous leadership on ambidextrous innovation. Design/methodology/approach The conceptual model defined through a thorough review of the literature is tested empirically on a sample of 265 senior managers working in Tunisian knowledge-intensive firms (KIFs). A quantitative analysis is performed via a questionnaire. The analysis of the data collected is carried out using the partial least squares method. Findings Results show that exploratory innovation is linked to transformational leadership and in particular to individualized consideration, intellectual stimulation and inspirational motivation. Moreover, exploitative innovation is promoted by transformational and transactional leadership styles and particularly by attributed idealized influence and contingent rewards. Also, ambidextrous leadership affects positively ambidextrous innovation. Originality/value While little studies have investigated how the transformational and transactional leadership styles as constructs of second-order influence differently exploitative innovation and exploratory innovation, this research deepens the analysis by focusing on sub-dimensions of leadership styles that promote each type of innovation within KIFs. It also pioneers the investigation of the effect of ambidextrous leadership on ambidextrous innovation that has never been explored. This research provides important insights for leaders of KIFs and sheds the light on the key aspects of leadership that boost ambidextrous innovation.

Purpose The aim of this paper is to highlight the impact of distributed leadership (DL) on exploitative and exploratory innovations through the mediating effects of organizational trust (OT) and tacit and explicit knowledge sharing (KS). Design/methodology/approach Focusing on a quantitative approach, an empirical study was performed within a sample of information and communication technology Tunisian firms. The data collected was analyzed through the Partial Least Squares (PLS) method. Findings Findings revealed that DL is a driver of tacit and explicit KS, and exploitative and exploratory innovations. It also highlighted that tacit KS is associated with these two types of innovation. In this line, results showed that tacit KS plays a mediating effect between DL and exploitative and exploratory innovations. Moreover, our research highlighted that DL has a positive impact on OT that in turn boosts tacit and explicit KS. Originality/value This paper investigates the links between DL and exploitative and exploratory innovations within knowledge intensive firms (KIFs) that have never been studied in the literature within the context of business firms. This paper pioneers the examination of the mediating roles of explicit and tacit KS and OT in these links as well. This paper highlights the importance of DL for KIFs and sheds the light on how this collectivist approach of leadership creates an atmosphere of trust and fosters tacit and explicit KS to boost exploitative and exploratory innovations.

Purpose The purpose of this paper is to investigate the links between the enterprise social networks (ESN) use and the exploitative and exploratory innovations and deepen the analysis by examining the mediating role of the sub-dimensions of intellectual capital (IC) in these relationships. Design/methodology/approach The authors use a quantitative method based on the questionnaire administrated to a sample of 248 middle managers working in Tunisian ICT firms. Regarding the data analysis, the authors use a partial least square-structural equation modeling (PLS-SEM) method. Findings Results highlight that whereas exploratory innovation is positively linked to human capital (HC) and social capital (SC), exploitative innovation is positively associated with HC. Findings show that the ESN use is linked positively to exploitative innovation and this link is mediated by HC. The data analysis also revealed that HC and SC mediate the link between ESN use and exploratory innovation. Originality/value Although limited studies have investigated the effect of the ESN use on firms, this research pioneers the examination of the effect of the ESN use on exploitative and exploratory innovations within ICT firms and the mediating roles of HC, SC and organizational capital that have never been explored. Findings are highlighted along with interesting insights for managers and outline the key aspects related to the ESN use that may improve the sub-dimensions of IC and boost exploitative and exploratory innovations.

Purpose The purpose of this paper is to examine the link between board of directors’ roles namely strategy, service and control roles and ambidextrous innovation. This study also aims to determine whether the independence and gender diversity of boards have mediating effects in this relationship. Design/methodology/approach On the basis of a quantitative approach, the authors conducted a survey on all Tunisian-listed firms. A partial least square method was used to analyze the quantitative data. The authors also conducted semi-structured interviews with a sample of boards’ members of the surveyed firms followed by a thematic analysis of the discourses to discuss the results. Findings Results revealed that ambidextrous innovation is negatively linked to board’s control role. The outcomes of this research show also that ambidextrous innovation is positively associated with board’s service role and that the gender diversity moderates positively this link. Findings do not indicate a significant relationship between board’s strategy role and ambidextrous innovation but show evidence that the relationship is negatively moderated by independent directors, while positively moderated by gender diversity. Originality/value This research sheds light on the effects of Boards’ roles on ambidextrous innovation and the moderating effect of board’s gender diversity and independence as well. This paper addresses the gap in the literature as this thematic has not been studied, offering key insights with regard to corporate governance of companies looking to achieve ambidextrous innovation.

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