Supervisor ostracism and defensive silence: a differential needs approach

This study investigates the sequential mediating effects of threats to efficacy needs and defensive silence between supervisor ostracism and emotional exhaustion, explained through need-threat/need-fortification framework. We collect time-lagged data at two measurement points from 300 employees working in service sector organizations in Pakistan. We find that supervisor ostracism threatens employees’ efficacy needs which results in reduced evaluation of resources. Consequently, employees seek to fortify these endangered needs through defensive silence, a proactive and self-protective behaviour. However, defensive silence affects employees’ trust, morale, motivation and eventually elicits emotional exhaustion. Our results show that supervisor ostracism, threat to efficacy needs and defensive silence contribute towards emotional exhaustion, and we offer several corrective options. We believe that one direct path involves actions that discourage supervisor ostracism through training and role plays. Another indirect step highlights competence of firm to create a perception of high status and influence. It may even involve managers to improve employees’ perception of work control through job redesign. Finally, we propose that supervisors may anticipate motives for defensive silence and plan targeted strategies to facilitate employees’ psychological safety.