| Resumo: | The study of dark personality traits and their implications still has many unknowns to be solved, especially in the organizational area. Previous research has demonstrated the existence of a negative impact on work outcomes. The proposed study aims to analyze whether the traits of the Dark Triad -Machiavellianism, narcissism, and psychopathy- of supervisors are negatively related to Affective Organizational Commitment and Satisfaction with Supervisors. It is expected that this relationship is mediated by Abusive Supervision, and in turn this relationship is conditioned by Moral Identity. In view of the results, Machiavellianism, narcissism and psychopathy are negatively related to Affective Organizational Commitment and to Satisfaction with Supervisors. Abusive Supervision mediated partially the relationship between the three traits of Dark Triad and Satisfaction with Supervisors, not being significant in the case of Affective Organizational Commitment. As far as moderate mediation is concerned, contrary to expectations, only Internal Moral Identity was shown to condition the relationship between supervisors’ Machiavellianism and narcissism respect to Satisfaction with supervisors via Abusive Supervision. Considering the results obtained, it can be affirmed that Machiavellianism, narcissism, and psychopathy in supervisors have negative outcomes at work. Likewise, the perception of supervision as abusive shows a negative impact, which makes it essential to encourage ethical behavior on the part of supervisors.
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