1. Bi-criteria optimization model for a four stage centralized supply chain Open Access Author: Vijayaragavan, Koushiik Title: Bi-criteria optimization model for a four stage centralized supply chain Graduate Program: Industrial Engineering Keywords: supply chainMulti-criteria optimizationgoal programming File: Download Koushiik_Vijayaragavan_Thesis.pdf Committee Members: Arunachalam Ravindran, Thesis Advisor/Co-Advisor