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标题：How much of the error term is explained by psychometric variables? The example of organic produce demand
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作者：Grebitus, Carola ; Dumortier, Jerome
期刊名称：Journal of Agribusiness
印刷版ISSN：0738-8950
出版年度：2013
期号：Suppl
出版社：Journal of Agribusiness
摘要：This paper analyzes the impact of human values and personality on the demand for organic tomatoes applying open-ended choice experiments to data from an online study that was performed in summer 2012. Results show that consumers make a distinction between conventional and organic produce, such that human values have a differential impact with regard to predicting demand for products associated with organic labels. Also, consumers distinguish between conventional and organic produce, such that personality has a differential impact with regard to predicting demand for products associated with organic labels. However, results are not as strong as for human values. Overall, results indicate that human values and personality are able to explain a portion of the variability of demand for organic tomatoes.
关键词：demand;human values;open ended choice experiments;organic;personality;tobit model