Elicitation of Preference among Multiple Criteria in Food Distribution by Food Banks
Elicitation of Preference among Multiple Criteria in Food Distribution by Food Banks
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DOI：
10.1111/poms.13551
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发表时间：
2021-10-22
影响因子：
5
通讯作者：
Ivy, Julie Simmons
中科院分区：
文献类型：
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作者：
Hasnain, Tanzid;Sengul Orgut, Irem;Ivy, Julie Simmons
联合国可持续发展目标为各国实现和平与繁荣提供了路线图。在这项研究中，我们将讨论其中两个可持续发展目标：实现粮食安全和减少不平等。食物银行是一个非营利组织，收集和分发食物捐赠给其服务地区的粮食不安全人口。食物银行在分配捐赠食物时考虑三个标准：公平，有效性和效率。公平标准的目的是按比例向粮食银行服务地区的粮食无保障家庭分配粮食。有效性标准旨在最大限度地减少未分配的食物，而效率标准则旨在最大限度地减少运输的总成本。假设这些标准的预定权重的模型可能会产生不准确的结果，因为食品银行对这些标准的偏好可能会随着时间的推移而变化，并作为供求的函数。我们与北卡罗来纳州的食品银行合作伙伴合作，开发了一个单周期加权多标准优化模型，为决策者提供了灵活性，以捕获他们对公平、有效性和效率这三个标准的偏好，并探索由此产生的权衡。然后，我们介绍了一种新的算法，elalise的固有偏好的食品银行通过分析其行动在一个单一的时期。该算法不需要与决策者直接互动。这种算法的非交互性对于缺乏资源与建模人员定期互动的粮食银行等人道主义组织来说尤其重要。我们进行了大量的数值实验，以验证我们的算法的效率。我们使用我们的食品银行合作伙伴的历史数据来说明结果，并讨论管理见解。我们探讨了不同的决策者偏好的分配政策的标准的影响。
The United Nations Sustainable Development Goals provide a road map for countries to achieve peace and prosperity. In this study, we address two of these sustainable development goals: achieving food security and reducing inequalities. Food banks are nonprofit organizations that collect and distribute food donations to food-insecure populations in their service regions. Food banks consider three criteria while distributing the donated food: equity, effectiveness, and efficiency. The equity criterion aims to distribute food in proportion to the food-insecure households in a food bank's service area. The effectiveness criterion aims to minimize undistributed food, whereas the efficiency criterion minimizes the total cost of transportation. Models that assume predetermined weights on these criteria may produce inaccurate results as the preference of food banks over these criteria may vary over time, and as a function of supply and demand. In collaboration with our food bank partner in North Carolina, we develop a single-period, weighted multi-criteria optimization model that provides the decision-maker the flexibility to capture their preferences over the three criteria of equity, effectiveness, and efficiency, and explore the resulting trade-offs. We then introduce a novel algorithm that elicits the inherent preference of a food bank by analyzing its actions within a single-period. The algorithm does not require direct interaction with the decision-maker. The non-interactive nature of this algorithm is especially significant for humanitarian organizations such as food banks which lack the resources to interact with modelers on a regular basis. We perform extensive numerical experiments to validate the efficiency of our algorithm. We illustrate results using historical data from our food bank partner and discuss managerial insights. We explore the implications of different decision-maker preferences for the criteria on distribution policies.