An agent-based model of income inequalities in diet in the context of residential segregation.
An agent-based model of income inequalities in diet in the context of residential segregation.
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DOI：
10.1016/j.amepre.2010.10.033
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发表时间：
2011-03
影响因子：
5.5
通讯作者：
Diez Roux AV
中科院分区：
文献类型：
--
作者：
Auchincloss AH;Riolo RL;Brown DG;Cook J;Diez Roux AV
饮食质量低下是导致肥胖和相关疾病的一个关键因素，而较低的收入通常与较差的饮食习惯有关。健康食品资源的不平等地理分布可能是造成膳食结构收入差距的一个关键因素。探讨经济隔离在健康饮食方面造成收入差异的作用，并探索可能适合抵消饮食方面收入差异的政策杠杆。使用一个简单的基于主体的模型来识别导致饮食收入差异的隔离模式。探讨了家庭食物偏好和健康食品的相对定价克服或加剧差异的能力。如果没有其他因素，饮食方面的收入差异是由于高收入家庭和健康食品商店与低收入家庭和不健康食品商店的隔离造成的。当两个收入群体都偏爱健康食品时，低收入群体的饮食有所改善，但差距仍然存在。有利的偏好和相对便宜的健康食品对于克服种族隔离产生的差异是必要的。该模型强调了当人员和资源居住隔离并且行为受到多种因素激励或约束时，促进有利行为改变的挑战。仿真建模可以成为提出和测试政策或干预措施的有用工具，这些政策或干预措施最终将在复杂系统中实施，其中多维交互的后果难以预测。
Low dietary quality is a key contributor to obesity and related illnesses, and lower income is generally associated with worse dietary profiles. The unequal geographic distribution of healthy food resources could be a key contributor to income disparities in dietary profiles. To explore the role that economic segregation can have in creating income differences in healthy eating and to explore policy levers that may be appropriate for countering income disparities in diet. A simple agent-based model was used to identify segregation patterns that generate income disparities in diet. The capacity for household food preferences and relative pricing of healthy foods to overcome or exacerbate the differential was explored. Absent other factors, income differentials in diet resulted from the segregation of high-income households and healthy food stores from low-income households and unhealthy food stores. When both income groups shared a preference for healthy foods, low-income diets improved but a disparity remained. Both favorable preferences and relatively cheap healthy foods were necessary to overcome the differential generated by segregation. The model underscores the challenges of fostering favorable behavior change when people and resources are residentially segregated and behaviors are motivated or constrained by multiple factors. Simulation modeling can be a useful tool for proposing and testing policies or interventions that will ultimately be implemented in a complex system where the consequences of multidimensional interactions are difficult to predict.
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影响因子：
1.4
作者：
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影响因子：
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作者：
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