ABSTRACT This study considered the efficiency with which food safety information is received and retained by low-income consumers in South Africa. Primary data from 110 low-income, urban, food consumers around Gauteng were collected and analysed with a willingness to pay (WTP) experiment and a proportional odds model. The study found that initially, 47% of the respondents claimed to know what Listeriosis is. Data validation, and a WTP experiment, however, suggest that there is social acceptability response bias. The proportional odds model further showed that education level is significant in explaining the level of food safety knowledge, but income is not. These results serve as an approximation of the degree of information asymmetry between low-income, urban food consumers and the South African government.

中文翻译：

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食品安全信息不对称——以南非豪登省 2018 年李斯特菌病爆发和低收入城市消费者为例

摘要 本研究考虑了南非低收入消费者接收和保留食品安全信息的效率。通过支付意愿 (WTP) 实验和比例优势模型，收集并分析了豪登省周围 110 名低收入、城市、食品消费者的主要数据。研究发现，最初，47% 的受访者声称知道李斯特菌病是什么。然而，数据验证和 WTP 实验表明存在社会可接受性反应偏差。比例优势模型进一步表明，教育水平在解释食品安全知识水平方面具有显着意义，而收入则不显着。这些结果可作为低收入城市食品消费者与南非政府之间信息不对称程度的近似值。