This paper presents a conceptual model to examine the factors influencing the interorganizational performance and implementation in inter-organizational relationships in a supply chain. We examine how attitude toward transactional orientation and relationship orientation affect inter-organizational performance, and how this association is mediated by the corporate social responsibility (CSR). The constructs are measured by well-supported measures in the literature. Data are collected from 207 manufacturing firms that are among the top 2000 Taiwanese manufacturing firms of 2010 listed by Business Weekly. Transactional orientation and relationship orientation were found positively associated with the interorganizational performance. Results show that CSR increases the willingness to establish relationships to enhance inter-organizational performance for supply chain. Findings of this study provide useful insights into how supply chain members should reinforce their collaborative behaviors and ethical-based relationships in order to enhance
interorganizational performance, consequently achieving a competitive advantage for the supply chain as a whole.