The study aims to examine direct and indirect impacts of managers’ emotional intelligence on performance of firms through determinants of job satisfaction, trust and opportunistic behav-ior. Data are collected from 617 respondents as managers of firms in Vietnam. The results show that the managers’ emotional intelligent not only had a direct and positive impact on the firm performance but also indirectly affects through two intermediaries of their satisfaction and trust. In addition, the findings reveal the relationship between determinants such as satisfaction positively influencing their trust and negatively affecting opportunistic behavior. Opportunistic behavior has a negative impact on trust and firm performance in the context of emerging countries like Vietnam.