List of Articles Intermediate product Open Access Article Abstract Page Full-Text 1 - Estimating Capacity Utilization in Two-Stage Production Systems: A Data Envelopment Analysis Approach L. Zeinalzadeh R. Kazemi Matin AR. Amirteimoori Open Access Article Abstract Page Full-Text 2 - Improving supply chain collaborations and performance of inefficient supply chain M. Sanei S. Mamizadeh-Chatghayeh