چكيده به لاتين
Agriculture is considered as the driving force of economic growth in the early stages of development, and in the later stages of growth, the agricultural sector is given at least five major roles, including income generation, job creation, food supply, market creation and valuable foreign exchange earning. The special characteristics of agricultural products have made most of these products short-lived and perishable. Also, the current environmental problems that the world is facing, as well as social concerns, have led supply chains to pursue broader goals than just achieving profitable economic performance. Therefore, any improvement in the performance of the agricultural supply chain have many benefits. In order to achieve the efficiency of this supply chain, having proper planning is a challenge that requires more attention. In this research, a model for perishable agricultural products supply chain with economic objective function (maximizing profit by considering the cost of purchasing the product from orchards, transportation, sorting and packing, inventory, processing, perishability and facility establishment), environmental objective (Minimizing carbon dioxide emissions caused by product transportation) and social objective (maximizing employment and local development) is presented. Also, some parameters including the amount of product that can be harvested, cost of purchasing products from orchards and percentage of products that have to be transferred to processing industries, are affected by uncertain conditions and change under different climatic scenarios, so a Two-stage stochastic programming is used. In order to solve the multi-objective model, the augmented epsilon constraint method is used and coded using GAMS 23.6 software. Finally, a case study of citrus supply chain in Iran has been conducted to evaluate the efficiency of the proposed model.
