Abstract: | Recognizing the importance of interfirm collaboration and recent advancement of information technology (IT) to enhance joint decision making between firms, this study conceptualizes systems collaboration and strategic collaboration as two essential types of interfirm collaboration. The study then simultaneously examines the multiple roles of systems collaboration and strategic collaboration, and how they directly and indirectly influence a firm's supply chain responsiveness and market performance. Hypotheses are tested on survey data collected from 184 firms. Results suggest that the sequential relationships among IT competency, interfirm collaboration, and supply chain responsiveness have significant market performance implications. |