Equitable distribution of perishable items in a food bank supply chain
Equitable distribution of perishable items in a food bank supply chain
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食品银行供应链中易腐烂物品的公平分配
DOI：
10.1111/poms.14019
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发表时间：
2023
影响因子：
5
通讯作者：
Lodree, Emmett J.
中科院分区：
文献类型：
--
作者：
Sengul Orgut, Irem;Lodree, Emmett J.
在美国，粮食银行通过向有需要的人口分发捐赠的粮食，在帮助降低粮食不安全率方面发挥着重要作用。粮食银行面临的挑战之一是在客户之间公平分配粮食捐赠，理想情况下，每个接受者都能获得相同数量的粮食。他们的目标是这样做，同时尽量减少由于变质和容量限制而产生的浪费。易腐食品提出了具体的挑战，因为它们容易变质，需要在保质期前分发。基于我们与位于美国东南部的一家大型食品银行的长期合作伙伴关系，我们提出了一个容量限制，多周期，多产品的网络流模型，以帮助他们公平，有效地分配易腐食品捐赠在其服务区域的粮食不安全人口。该模型应用的背景下的案例研究，并揭示了管理的见解，将是有用的从业人员。我们的研究结果表明，尽管公平是粮食银行的最高优先事项之一，但不公平现象无法完全消除。鉴于在实践中不可避免的不公平的粮食分配，本文提供了粮食银行指导如何从战略上控制不公平使用两种方法：（一）通过增加公平应满足或（ii$ii$）通过允许偏离一个完全公平的分配期间的数量。结果表明，使用这两种方法中的任何一种，只要稍微偏离完全公平，就可以显著改善所分配食物的质量和数量，还可以减少食物浪费。虽然方法（ii$ii$）是更可取的，但当两者同时应用时，会出现最理想的结果。我们还发现，县能力抑制粮食银行的能力，实现公平和有效性之间的平衡时，分配易腐。我们的框架为食品银行提供了灵活性，可以根据他们的偏好在有效性和公平性之间进行权衡。
In the United States, food banks play an important role in helping to reduce the rate of food insecurity by distributing donated food among the population in need. One of the challenges that food banks face is to equitably distribute food donations among their clients such that, ideally, each recipient receives the same amount of food. They aim to do so while minimizing waste that occurs due to spoilage and capacity limitations. Perishable food items present specific challenges since they are susceptible to spoilage and need to be distributed before their expiry dates. Based on our longstanding partnership with a large food bank located in the southeastern United States, we present a capacitated, multiperiod, multiproduct network flow model to help them equitably and effectively distribute perishable food donations among the food‐insecure population in their service region. The model is applied within the context of a case study and reveals managerial insights that would be useful to practitioners. Our findings show that although equity is one of the food bank's highest priorities, inequities cannot be eliminated completely. Given the inevitability of inequitable food allocations in practice, this paper provides food banks guidance on how to strategically control inequities using two approaches: (i) by increasing the number of periods for which equity should be satisfied or (ii$ii$) by allowing deviations from a perfectly equitable distribution. The results show that modest deviations from perfect equity using either approach can lead to significant improvements in both the quality and quantity of food distributed and can also reduce food waste. While approach (ii$ii$) is preferable, the most desirable outcomes occur when both are applied simultaneously. We also find that county capacities inhibit a food bank's ability to achieve balance between equity and effectiveness when distributing perishables. Our framework provides food banks the flexibility to balance the trade‐off between effectiveness and equity based on their preferences.
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