This study draws on socioemotional selectivity and person–job fit theories to investigate the emotional bases for age-related differences in daily task crafting and in-role performance. We tested a mediation model in which age is related to positive emotions that in turn predict task crafting and in-role performance. A total of 256 people working in multiple organizations participated in a 5-day diary study. Multilevel modeling showed that, at the person level of analysis, age is significantly and positively related to positive emotions and task crafting and, via crafting, to in-role performance. No significant mediation of high- and low-arousal positive emotions was found between age and task crafting. However, at the day level of analysis, high-arousal positive emotions are positively related to task crafting, and this in turn is positively related to in-role performance. These findings make important theoretical contributions to understanding within-person processes associated with employee age in addition to more traditional between-person factors. They also have implications for managing an age-diverse workforce by means of job crafting.

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• Psicologia - Ciências Sociais
• Economia e Gestão - Ciências Sociais