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The importance of humble leadership has garnered attention from both researchers and practitioners. Unfortunately, despite the accumulation of recent findings on the effects of leader humility, a quantitative review remains scant. In addressing this void, this study is among the first to conduct a meta-analytic review of humble leadership and its outcomes. Eighty-four correlations (N = 16,534) from 53 independent studies are synthesized. The authors found that: (a) humble leadership is positively related to affective commitment (ρ = 0.56), affective trust (ρ = 0.62), creativity (ρ = 0.39), engagement (ρ = 0.40), leader–member exchange (LMX) (ρ = 0.58), job satisfaction (ρ = 0.51), organizational identification (ρ = 0.48), psychological empowerment (ρ = 0.33), self-efficacy (ρ = 0.24), task performance (ρ = 0.33), and voice (ρ = 0.34); and that (b) humble leadership contributes a significant incremental variance beyond transformational, servant, and ethical leadership in several crucial criterion variables, providing solid evidence for the construct's uniqueness. However, humble leadership does not explain incremental variance in some criterion variables, indicating that future studies should control for the influence of some positive leadership (e.g., transformational and servant leadership). Age, gender, study design, country, and year partially moderate the correlations of interest. We discuss our findings with caution and propose future research directions.

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Previous studies only considered the impact of personal or environmental factors on intensive smartphone use separately, while largely ignoring the impact of person-environment (P-E) fit on it. Drawing on the P-E fit theory, we proposed that perceived overqualification (POQ), an indicator of person-job misfit, positively affects intensive smartphone use via job boredom, and affective commitment moderates this indirect effect. We examined our hypotheses using four-wave time-lag data of 450 workers from 62 teams. The results revealed that POQ raised job boredom of an individual and thus increased their intensive smartphone use. In addition, when the affective commitment was high, the indirect effect from POQ to intensive smartphone use via job boredom was weaker. The implications, limitations, and future directions of this research were discussed.

This study aims to reveal the impact of proactive personality on career success (i.e., subjective career success, salary, and promotion) and the sequential mediation effect of organizational citizenship behavior (OCB) and task performance on the relationship. Utilizing meta-analytic structural equation modeling (MASEM) technology sampling 101,131 employees from multiple organizations and industries, which deeply decreased sampling error, the results indicated slightly different findings of proactive personality and three types of career success. Specifically, in relation to salary, OCB and task performance independently transmit the effects of proactive personality to subjective career success, but they sequentially mediate this link as well. In regard to subjective career success and promotion, OCB (but not task performance) mediates the relationship between proactive personality and promotion. OCB and task performance sequentially mediate these links. We discussed findings cautiously and purpose future research directions.