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1、Leader Personality Traits and Employee Voice Behavior: Mediating Roles of Ethical Leadership and Work Group Psychological SafetyFred O. Walumbwa John SchaubroeckMichigan State University Arizona State UniversityThe antecedents and consequences of ethical leadership were examined in a study of 894 em
2、ployees and their 222 immediate supervisors in a major financial institution in the United States. The leader personality traits of agreeableness and conscientiousness were positively related to direct reports ratings of the leaders ethical leadership, whereas neuroticism was unrelated to these rati
3、ngs. Ethical leadership influenced followers voice behavior as rated by followers immediate supervisors. This relationship was partially mediated by followers perceptions of psychological safety. Implications for research on ethical leadership and means to enhance ethical behavior among leaders and
4、nonleaders are discussed.Keywords: ethical leadership, leadership, personality, psychological safety, voiceIn both the mass media and the academic community, there has been a surge in interest in the ethical and unethical behavior of leaders. Although the high-profile corporate scandals in recent ye
5、ars may explain much of the mass media and popular focus (Walumbwa, Avolio, Gardner, Wernsing, & Peterson, 2008), academics interest has been piqued by fresh evidence that ethical leadership behavior is associated with both positive and negative organizational processes (e.g., Brown, Trevino, & Harr
6、ison, 2005; Mayer, Kuenzi, Greenbaum, Bardes, & Salvador, 2009) and outcomes (De Hoogh & Den Hartog, 2008). In this study, we sought to contribute to this body of knowledge by examining new antecedents and outcomes of ethical leadership.Brown et al. (2005, p. 120) defined ethical leadership as “the
7、demonstration of normatively appropriate conduct through personal actions and interpersonal relationships, and the promotion of such conduct to followers through two-way communication, reinforcement, and decision-making” (for a review, see Brown & Trevino, 2006). Brown et al. argued that ethical lea
8、ders not only inform individuals of the benefits of ethical behavior and the cost of inappropriate behavior; such leaders also set clear standards and use rewards and fair and balanced punishment to hold followers accountable for their ethical conduct (see also Trevino, Brown, & Hartman, 2003). Desp
9、ite the assumed importance and prominence of ethical leadership in organizations, there are still many questions relating to its antecedents and consequences (Brown et al., 2005). For example, researchers know very little about why some leaders engage in the spectrum of ethical leadership behaviors
10、and others do not. One key question is whether the likelihood of an individual being perceived as an ethical leader among subordinates can be predicted using his or her personal characteristics. Identifying trait antecedents will aid in the development of strategies for selecting and developing ethi
11、cal leaders and determining the best means to reinforce ethical behaviors.Only a few studies have addressed the consequences of ethical leadership behavior (Brown et al., 2005; Detert, Trevino, Burris, & Andiappan, 2007; Mayer et al., 2009). Whereas some reliable evidence from recent studies support
12、s the idea that ethical leadership has a range of favorable outcomes (e.g., Brown et al., 2005; Mayer et al., 2009), Detert et al. (2007) found no relationship between ethical leadership and food shrinkage, an index of counterproductive behavior among restaurant employees. Some psychological mechani
13、sms that may explain the more favorable effects of ethical leadership have been discussed (see Brown & Trevino, 2006), but little empirical attention has been directed toward understanding the psychological processes that may differentiate the behavior of followers of ethical leaders from that of fo
14、llowers of less ethical leaders. A clearer understanding of the mechanisms by which ethical leadership influences outcomes is not only needed for the practical concerns of selecting for, developing, and motivating ethical leadership; such information would also be valuable for determining whether th
15、e construct developed by Brown and Trevino and their colleagues contributes something genuinely new to leadership research and practice.With these limitations of the extant literature in mind, we had three aims in the present study. First, we identified individual traits that were expected to influe
16、nce ethical leadership. We chose to focus on how leader personality relates to follower ratings of the leaders ethical behavior for two reasons. Brown et al. (2005) and Brown and Trevino (2006) proposed that three personality traits conscientiousness, agreeableness, and neuroticismare plausible antecedents of ethical leadership. Personality antecedents may be uniquely suited to predicting ethical leadership, because e
