The present study was conducted to design and test a model of some antecedents of positive organizational behavior. The design of the current study was correlation using structural equation modeling. The participants in the research were employees who were chosen using a stratified random sampling method and answered the questionnaires on a leader-member exchange, organization-oriented self-esteem, positive organizational behavior, perceived organizational support, role ambiguity, and psychological ownership. Evaluation of the proposed model was done through structural equation modeling. The bootstrap method was also used to check the indirect relationships in the proposed model. The results showed that the proposed model has a good fit with the data. The findings also indicated the significance of the direct effect of the variables of psychological ownership, leader-member exchange, and perceived organizational support on positive organizational behavior. Indirect relationships through organizational self-esteem were also confirmed. Based on the findings of the present research, which confirms the fit of the proposed research model with the data, as well as direct and indirect relationships, it is recommended to pay attention to the variables affecting positive organizational behavior.
