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We theorized and tested an integrated model that examines the simultaneous effects of authentic self-expression and self-enhancement (including authentic and exaggerated self enhancement) on employee outcomes. Using a multisource, two-wave survey design and a sample of 143 working groups from 566 employees, we tested the indirect effects of self-presentation on job performance through (a) trust from coworkers and (b) felt trust from coworkers. We found that through trust from coworkers, authentic self-expression had a positive indirect effect on job performance, whereas authentic and exaggerated self-enhancement had negative indirect effects. Via felt trust from coworkers, authentic self-enhancement had a positive indirect effect on job performance, whereas exaggerated self-enhancement had a negative indirect effect. In addition, we identified a boundary condition of these relationships. The positive relationship between authentic self-expression and trust from coworkers and the negative relationship between exaggerated self-enhancement and trust from coworkers were stronger when working for highly authentic leaders. Contrary to expectations, the relationship between authentic self-enhancement and trust from coworkers was negative and significant when working for less authentic leaders.
Kim et al. (Wed,) studied this question.