Research Assistant, (
Assistant Professor, (
J Sch Health. 2021 May;91(5):418-427. doi: 10.1111/josh.13013.
The most recent Farm to School (FTS) Census reported that of the 42% of US schools that participate in FTS, 77% procure food locally. In 2019, Colorado joined many other states in passing legislation that provides per-meal incentives for purchasing local foods. However, little is known about how these incentives impact procurement decisions of school Food Service Directors (FSDs), and purported benefits of FTS cannot accrue without additional local purchases by school FSDs.
We constructed a unique, primary dataset of fresh fruit and vegetable purchases from 18 months of school invoices in 3 Northern Colorado school districts and parameterized an optimization model that mimics FSD decisions. Subsequently, we simulated how procurement is impacted by local food reimbursements.
Assuming 2017 and 2018 purchasing behavior, at $0.05 per meal reimbursement, FSDs would increase fresh fruit and vegetable purchasing by 11-12% in August-October, but by only 0-1% in November-December, likely due to seasonality constraints.
While an increase in FTS procurement was expected, the magnitude of the potential increase when aligned with the Colorado growing season is notable. This work underscores that adequately funded reimbursement-based FTS policies can increase FTS procurement without disrupting normal cost-minimizing purchasing behavior.
最近的农场到学校(FTS)普查报告显示,在参与 FTS 的 42%的美国学校中,77%的学校在当地采购食品。2019 年,科罗拉多州加入了许多其他州的立法,为购买当地食品提供每餐激励。然而,人们对这些激励措施如何影响学校食品服务主任(FSD)的采购决策知之甚少,如果没有学校 FSD 增加额外的当地采购,FTS 的所谓好处就不会实现。
我们构建了一个独特的、主要的数据集,其中包括 3 个科罗拉多州北部学区 18 个月的学校发票中的新鲜水果和蔬菜采购情况,并参数化了一个模仿 FSD 决策的优化模型。随后,我们模拟了当地食品报销对采购的影响。
假设 2017 年和 2018 年的采购行为,在每餐报销 0.05 美元的情况下,FSD 会在 8 月至 10 月将新鲜水果和蔬菜的采购量增加 11-12%,但在 11 月至 12 月仅增加 0-1%,这可能是由于季节性限制。
虽然预计 FTS 的采购量会增加,但与科罗拉多州的生长季节相吻合的潜在增长幅度是值得注意的。这项工作强调,有足够资金支持的基于报销的 FTS 政策可以在不扰乱正常成本最小化采购行为的情况下增加 FTS 的采购量。