Integrated foodbank network design: Model and a case study
提出一个混合整数规划模型来设计综合食物银行网络，以高效、有效和公平的方式分配食物给粮食不安全人群，并在印度德里进行案例研究，分析初始容量、预算和成本约束的影响。
To address the UN’s zero hunger goal (SDG 2), scattered and isolated initiatives by nonprofit organizations towards operating foodbanks are generally ineffective in developing countries where the foodbank ecosystem is at a preliminary stage. Establishing an integrated system comprising entities such as donors, foodbanks, food recovery and redistribution agencies (FRRA), and beneficiaries can be quite complex due to an underlying hierarchy, scale of operation, types of donors, and the severity of food insecurity of the beneficiaries. In this work, we present a strategic mixed-integer programming model to design an integrated foodbank network towards achieving an efficient, effective, and equitable food distribution mechanism for food-insecure beneficiaries while accounting for their age profile and nutritional requirements. We ensure cost-efficiency by minimizing the total system cost, effectiveness by discouraging food waste and unmet demand via charging penalties, and equity by adopting five variants of an egalitarian approach. We conduct a case study with a mix of real and realistically estimated data to design a foodbank network in Delhi (India) and present detailed analyses with insights for the practitioners. Specifically, the effects of foodbanks’ initial capacities, budget and strategic-to-operational cost constraints on the solution are identified. Among important observations, our analyses highlight when initiatives for collecting more ready-to-eat foods might be taken to relieve the pressure on the integrated system, and also help in identifying the conditions when investment in capacity building serves the beneficiaries’ interests better than direct spending. • Problem studied: strategic design of an integrated foodbank network. • Objective: to achieve 3E’s i.e. efficiency, effectiveness and equity in the system. • Approach: a mixed-integer programming model is formulated. • Case study: a proposed foodbank network in Delhi, the capital of India, is presented. • Managerial insights and policy implications are illustrated through experimentation.