Seokhwa Yun

Contingent Leadership and Effectiveness of Trauma Resuscitation Teams

This research investigated leadership and effectiveness of teams operating in a high-velocity environment, specifically trauma resuscitation teams. On the basis of the literature and their own ethnographic work, the authors proposed and tested a contingency model in which the influence of leadership on team effectiveness during trauma resuscitation differs according to the situation. Results indicated that empowering leadership was more effective when trauma severity was low and when team experience was high. Directive leadership was more effective when trauma severity was high or when the team was inexperienced. Findings also suggested that an empowering leader provided more learning opportunities than did a directive leader. The major contribution of this article is the linkage of leadership to team effectiveness, as moderated by relatively specific situational contingencies.

The forgotten follower: a contingency model of leadership and follower self‐leadership

Purpose – Seeks to examine the interaction effect of leadership and follower characteristics on follower self‐leadership, using hierarchical linear modeling.Design/methodology/approach – Longitudinal data were collected using a questionnaire at two points in time, with ten weeks between each collection. These data facilitate the causal inference between leadership and follower need for autonomy (wave 1) and follower self‐leadership behaviors (wave 2). Hierarchical linear modeling (HLM) was used to analyze the hierarchical structure data.Findings – Both empowering and directive leadership (group level) interacted with followers need for autonomy (individual level) to enhance subsequent follower self‐leadership (individual level). That is, empowering leadership had a stronger positive effect on followers who were high on the need for autonomy, and directive leadership had a stronger negative effect on followers who were high on the need for autonomy. In summary, the influence of leadership on follower self...

Team leadership and coordination in trauma resuscitation

This study investigates team leadership and coordination during a trauma resuscitation. A trauma resuscitation team is an emergency cross- functional medical team, which includes several specialists such as a surgeon, an anesthesia provider, and nurses. The main purpose of the team is to perform a resuscitation; treatment to a patient who experiences a trauma (e.g. car crash, stabbing, gunshot) and has a life-threatening injury. The trauma team can be seen as a type of crisis team since the need for treatment is quite intense and urgent. Team members must treat and stabilize the patient within minutes and without much information about his/her condition and medical history. As a result, this team is working in an intense and highly stressful situation. We used focused ethnography in order to gain an understanding of leadership and coordination during a trauma resuscitation. Over a period of six months, we observed admissions, shadowed teams, and interviewed specialists as a primary data collection method. Our findings suggest that the effectiveness of leadership differs depending on: (1) the severity level of patient condition; and (2) the level of team experience. Directive leadership is more effective when a patient is severely injured, whereas empowering leadership is more effective when a patient is not severely injured. Also, directive leadership is better when a trauma team is inexperienced, but empowering leader- ship is better when a trauma team has a high level of experience.

Never Too Much? The Curvilinear Relationship Between Empowering Leadership and Task Performance

Although empowering leadership is generally considered to be a desirable leadership approach, its effectiveness has been questioned and the response is mixed. Integrating the “Too-Much-of-a-Good-Thing” effect and dual task processing, this study examines the relationship between empowering leadership and task performance. Specifically, we suggest a curvilinear relationship between empowering leadership and employee task performance. Further, applying a leadership contingency perspective, we propose that the curvilinear relationship between empowering leadership and employee task performance is moderated by employee learning orientation. Using survey data from 137 supervisor–subordinate dyads, our results show that the inverted U-shaped relationship between empowering leadership and employee task performance is moderated by employee learning orientation. Theoretical and practical implications are discussed.

Knowledge Sharing, Abusive Supervision, and Support A Social Exchange Perspective

Knowledge sharing is essential for achieving sustainable competitive advantages for organizations. Yet, there is a paucity of studies examining how a supervisor’s behavior, particularly, abusive supervision may become a barrier of individuals’ knowledge sharing. Drawing on insights from social exchange theory, this study investigates the influence of abusive supervision on knowledge sharing, moderated by support from organization and coworker. Consistent with our hypotheses, abused employees do not share their knowledge, but the negative effect could be buffered when they perceive high organizational support. Implications and future research directions are discussed.

Knowledge sharing, work–family conflict and supervisor support: investigating a three-way effect

Despite the importance of knowledge sharing in competitive environments, there is a paucity of studies examining the relationship between employee knowledge sharing and work–family conflict. Drawing on insights from conservation of resources theory, this study investigated how employees may reduce their knowledge-sharing behaviors when they experience resources lost from work interference with family (WIF) or family interference with work (FIW). Furthermore, the role of supervisor support in the relationship among WIF, FIW and knowledge sharing was explored as a valuable resource. Using data collected from 159 employees in South Korea, we found support that WIF is negatively related to knowledge sharing. In addition, the role of supervisor support in the relationship among WIF, FIW and knowledge sharing was the strongest when WIF is low and FIW is high, thus supporting the hypothesized a three-way effect. Theoretical and practical implications are discussed.

Abusive supervision, knowledge sharing, and individual factors

Purpose – By applying conservation-of-resource (COR) theory, the purpose of this paper is to examine the effect of a leader’s destructive behaviors, i.e., abusive supervision, on employee knowledge sharing and the moderating effects of learning goal orientation and self-enhancement motives on the aforementioned relationship. Design/methodology/approach – The hypotheses were tested using regression analysis on data from 245 employees in South Korea. Findings – The results showed that abused employees who experience depleted resources are likely to reduce their level of knowledge sharing, in accordance with COR theory. Furthermore, this research demonstrated that the negative effects of abusive supervision may differ depending on individual factors. Specifically, when an individual employee has low internal motivation or available resources for knowledge sharing (low learning orientation and high self-enhancement motive), the detrimental consequence of abusive supervision on knowledge sharing is worsened. P...

Sharing my knowledge? An interactional perspective

Purpose – The purpose of this paper is to identify factors that facilitate individual knowledge sharing. Specifically, the authors investigated the roles of coworker support and individual characteristics, i.e., exchange ideology and learning orientation on knowledge sharing. Design/methodology/approach – Data were collected from questionnaires distributed to employees and their direct supervisors in two companies in South Korea. Hierarchical regression analyses and simple slope test were performed to test the hypotheses. Findings – Coworker support and learning orientation is positively but exchange ideology is negatively related to knowledge sharing. Furthermore, when coworker support is low, knowledge sharing is mainly dependent on each individual’s characteristics. However, when coworker support is high, employees showed high level of knowledge sharing irrespective of their individual characteristics. Research limitations/implications – This study suggested that the support from coworker as well as in...

What do we need for creativity? The interaction of perfectionism and overall justice on creativity

Purpose The purpose of this paper is twofold, applying an interactive perspective. First, the authors examine the effects of perfectionism, specifically self-oriented and socially prescribed perfectionism on creativity. Understanding the distinctive effects of two dimensions of perfectionism (Leonard and Harvey, 2008), the authors propose the positive effect of self-oriented perfectionism on creativity while the negative effect of socially prescribed perfectionism on creativity. Second, the authors explore the role of overall justice by examining the direct and interacting effects of the two dimensions of perfectionism on creativity. Design/methodology/approach Data were collected using questionnaires distributed to employees and their direct supervisors located in South Korea. Hierarchal regression analyses were used to examine the main and moderating effects. Findings The authors’ results demonstrated that self-oriented perfectionism was positively related to employee’s creativity; while, socially prescribed perfectionism was not significantly related to employee’s creativity. Furthermore, the study examined the critical context factor of overall justice in determining individual creativity. The result demonstrated that the positive relationship between self-oriented perfectionism and creativity was stronger when overall justice is low rather than high in line with trait activation theory. Research limitations/implications A cross-sectional design may be a concern. Future research needs to take a more careful approach to avoid this potential problem. Originality/value This study enriches our understanding of the two domains of perfectionism (self-oriented and social prescribed perfectionism) and overall justice as critical factors for creativity. Applying an interactive perspective, this study demonstrated how perfectionism and overall justice play important roles in influencing employees’ creativity independently and jointly.

Abusive supervision and knowledge sharing: the moderating role of organizational tenure

Purpose Drawing on social exchange theory (SET) and conservation of resources (COR) theory, the purpose of this paper is to examine the negative consequence of abusive supervision on knowledge sharing. Further, this paper explores the moderating role of organizational tenure in the relationship between abusive supervision and employees’ knowledge sharing behavior applying sense-making theory. Design/methodology/approach The hypotheses were tested using regression analysis across two independent studies conducted in South Korea. Findings The authors found evidence that there was a negative relationship between abusive supervision and employees’ knowledge sharing behavior. Furthermore, the aforementioned relationship was strengthened for those with longer organizational tenure. Originality/value This research deepens our understanding of the negative consequences of abusive supervision on employees’ knowledge sharing behavior by drawing on SET and COR theory. Through two independent studies, the results demonstrated that employees who receive abusive treatment from their supervisors tend to reduce their knowledge sharing behavior. Furthermore, this detrimental effect is stronger for key knowledge providers, namely long-tenured employees.