عنوان مقاله [English]
In this study, we examined the effect of the interaction between demand uncertainty and supply chain integration on firm performance using a survey method with questionnaires. The sample consists of the firms that were in steel and auto parts industries. Previous studies had not examined the interaction effect between these three types of integration and uncertainty in supply chains as was done in this study. In total, 84 firms participated in the study. We used hierarchical regression model to test our hypotheses with industry type added as a control variable. Research findings showed that integration in internal and process dimensions can have a positive effect on both operational and financial performance. However, product integration had no effect on operational performance while it had a negative effect on financial performance. There was a significant interaction between demand uncertainty and integration dimensions as well. Under conditions of demand uncertainty, process integration improved financial performance. Considering these results, it is recommended that companies focus on internal and process integration as more effective types of integration, which improve both types of performance and give higher priority to process integration under high demand uncertainty conditions. Furthemore, type of industry did not influence study results.