By integrating conservation of resources and social comparison perspectives, we seek to investigate how employees’ own i-deals, independently from and jointly with their coworker’s i-deals, determine their emotional exhaustion and subsequent deviant behaviors. We conducted a field study focusing on task i-deals, and used Actor–Partner Interdependence Model and polynomial regression to test the hypotheses. We found that emotional exhaustion not only mediated the negative relationship between employees’ own task i-deals and deviant behaviors, but also mediated the positive relationship between upward (...) social comparison of task i-deals and deviant behaviors. These results demonstrated the intra- and interpersonal implications of task i-deals for emotional exhaustion and subsequent deviant behaviors. The current research not only shifts the attention from a predominantly positive view on i-deals to a more balanced and nuanced view on i-deals’ implications, but also sheds light on the interpersonal nature of i-deals and the emotional exhaustion implication of upward social comparison. (shrink)