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| Decision variables |
| Factories | |
| Warehouses | |
| Customers | |
| Collection centers | |
| Planning courses | |
| Intended scenarios in the model | |
| Supplied products | |
| Primary and semifinished parts suppliers | |
| Piece/raw material | |
| Supplier relocation options (vehicle) | |
| Options for moving between warehouses | |
| Customer transferring options (vehicle) | |
| Displacement options between disassembly centers | |
| Factory transferring options (vehicle) | |
| Customer demand in each scenario for each product |
| Market prices for each supplier in each scenario |
| Purchase volume to offer a discount for each supplier |
| Part supply capacity for each supplier |
| Parts needed to make any product |
| Maximum discount available |
| Material supply risk from the supplier |
| Cost of shortage dissatisfaction |
| Probability of occurrence of scenario s |
| Cost of moving a unit of products from factory f to warehouse |
| Cost of moving a unit of products from the warehouse to the customer c |
| Cost of transportation in order to collect products and transfer them from customer c to disassembly center i |
| Cost of moving a unit of products in order to transfer it from the collection dismantling center i to the factory f |
| Cost of moving a unit of products in order to transfer it from the supplier center su to the warehouse |
| Rates of transportation of products from factory f to warehouse |
| Rates of transportation of products from the warehouse to the customer c |
| Product collection rate and transfer from customer c to disassembly center i |
| Rate of transportation of products from the collection dismantling center i to the factory f |
| Rates of transportation of products from the supplier su to warehouse |
| Distance between factory f and warehouse |
| Distance between warehouse and customer c |
| Distance between customer c and disassembly center i |
| Distance between collection dismantling center I and factory f |
| Distance between supplier and warehouse |
| Fixed cost for factory reconstruction f |
| Fixed cost for warehouse reconstruction |
| Fixed cost for reconstruction of the collection dismantling center i |
| Variable cost of production per unit of product p in factory f |
| Variable cost of production per unit of product p in stock |
| Variable cost of collecting returned products p of customer c |
| Variable cost of collection center products p |
| Variable cost of products restoration p |
| Maximum factory production capacity f to produce product p |
| Maximum warehouse processing capacity for product warehouse p |
| Maximum center i disassembly capacity for product p |
| Maximum factory reconstruction capacity f for product p |
| Maximum storage capacity to hold part b |
| The lowest percentage of each unit of parts returned by a customer (product) |
| Minimum percentage of product units to be shipped from a disassembly center |
| The amount of carbon dioxide released per unit of product produced at the plant f |
| The amount of carbon dioxide released per shipment per unit of stock |
| The amount of carbon dioxide released per disassembly of each product unit at the center i |
| The amount of carbon dioxide released per unit of product regenerated at the factory f |
| The amount of carbon dioxide released per shipment for per unit b in storage |
| The amount of carbon dioxide released to move products between factory f and warehouse with vehicle tf |
| The amount of carbon dioxide released to move products between warehouse and customer c by a t-type vehicle |
| The amount of carbon dioxide released to move the product between customer c and the disassembly center i with vehicle tk |
| The amount of carbon dioxide released to move products between the collection dismantling center i and plant f by vehicle ti |
| The amount of carbon dioxide released to move the part between the warehouses and the suppliers su with vehicle tsu |
| Precautionary storage of parts |
| Number of pieces b purchased from supplier su and transferred to warehouse by vehicle tsu in scenario s and period t |
| The number of pieces b sent from warehouse to factory using vehicle t in scenario s and in period t |
| Number of products p produced from factory f and transferred to warehouse using vehicle tf in scenario s and in period t |
| Number of products p sent from warehouse to customer c using vehicle tw in scenario s and period t |
| The number of products p collected from customer c to the disassembly center i in scenario s and in period t |
| The number of products p disassembled that are transferred from center i to factory f using vehicle ti in scenario s and in period t |
| Inventory for each piece b in period t in scenario s |
| Inventory for each product p in period t in scenario s |
| Number of products shortages p for each customer c in each period t and for each scenario s |
| Cost of parts purchased in different periods from suppliers |
| Total discounts received from purchases in different periods |
| Percentage of discounts offered by suppliers for each type of piece in each period and scenario |
| 1 when factory f is active and 0 otherwise |
| 1 when warehouse is active and 0 otherwise |
| 1 when center i is active and 0 otherwise |
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