Modelling trade in processed food products: an econometric investigation for France
基于法国数据，用差异化产品模型研究加工食品贸易，发现消费者不仅区分国产与进口食品，还区分欧盟内与欧盟外进口。
This paper presents an econometric study of trade in processed food products based on French data. We use a differentiated-product model, which captures non-homothetic consumer preferences but also allows for testable restrictive structures such as homogeneity, homogeneous weak separability and the Armington specification. The model framework adopted is based on the constant difference of elasticities (CDE) function. The Armington assumption is rejected for the majority of products. Econometric results suggest that French consumers distinguish not only between home-produced and imported food products but also between supplies originating from elsewhere in the European Union and imports from the rest of the world. Copyright 2002, Oxford University Press.