Research Article
A Nonlinear Integer Programming Model for Integrated Location, Inventory, and Routing Decisions in a Closed-Loop Supply Chain
| | Parameter | Description | Value |
| | Shipping cost per unit of product between a manufacturing plant and HDCC | U [6, 10] | | Vehicle capacity | 1500 | | Fixed cost per shipment from a plant to HDCC | U [21, 25] | | Fixed administrative and handling cost of placing an order to a plant at HDCC | U [16, 20] | | Disposal cost per unit of returned product which cannot be refurbished at HDCC | 2 | | Holding cost per unit of new product per year at HDCC | 2 | | Holding cost per unit of returned product at HDCC | 1 | | Fixed cost of repairing and repacking one unit of returned product at a manufacturing plant | 2 | | Inspection cost per unit of returned product at HDCC | 1 | | Daily returns from retailer | U [1, 5] | | Shipping cost per unit of product and distance | 5 | | Probability that a returned product cannot be refurbished | 0.3 | | Working days per year | 300 |
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