Carlsson Fredrik, Frykblom Peter, Lagerkvist Carl Johan
Department of Economics, School of Economics and Commercial Law, Gothenburg University, Sweden.
Ambio. 2005 Jun;34(4-5):366-70. doi: 10.1639/0044-7447(2005)034[0366:cpffpq]2.0.co;2.
This paper employs a choice experiment to obtain consumer preferences and willingness to pay for food product quality attributes currently not available in Sweden. Data were obtained from a large mail survey and estimated with a random parameter logit model. We found evidence for intraproduct differences in consumer preferences for identical attributes, as well as interproduct discrepancies in ranking of attributes. Furthermore, we found evidence of a market failure relating to the potential use of genetically modified animal fodder. Finally, we found support for the idea that a cheap-talk script can alleviate problems of external validity of choice experiments. Our results are useful in forming product differentiation strategies within the food industry, as well as for the formation of food policy.
本文采用选择实验来获取消费者对瑞典目前尚未提供的食品质量属性的偏好和支付意愿。数据来自一项大型邮件调查,并使用随机参数logit模型进行估计。我们发现了消费者对相同属性的偏好存在产品内差异的证据,以及属性排名存在产品间差异的证据。此外,我们发现了与转基因动物饲料潜在使用相关的市场失灵的证据。最后,我们发现有证据支持这样一种观点,即一个廉价交谈脚本可以缓解选择实验外部有效性的问题。我们的结果对于食品行业内产品差异化策略的形成以及食品政策的制定很有用。