الفهرس 
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Abstract
This study aims to explain how brand psychological ownership plays a mediator role in the relationship between relationship marketing and brand advocacy for mobile network companies in Palestine (Jawwal, Ooredoo). The research used a deductive approach and employed quantitative analysis as the primary research methodology. A total of 402 valid responses were collected through a questionnaire generated with Google Forms, with a response rate of 93%. Structural equation modeling was then used to test the proposed hypotheses. The gathered data was analyzed using SPSS (V. 26) and AMOS (V. 23) to examine the causal relationships among the research variables.The findings indicate that trust and conflict handling positively affect brand advocacy. Also, commitment and conflict handling have a positive effect on the dimensions of brand psychological ownership. Furthermore, Responsibility for maintaining brand image and brand value effectiveness has a positive effect on brand advocacy. The Results also showed that brand psychological ownership acts as a mediator in the relationship between relationship marketing and brand advocacy. Moreover, the research showed no significant demographic differences in respondents’ opinions, except for differences related to education level and age.