An application of the Market Share Approach to the demand for soyabean and rapeseed oil
用市场份额法估计美国、加拿大、日本和欧共体对大豆油和菜籽油的需求，发现菜籽油需求弹性更大，欧共体需求弹性最高。
Estimates of the demand for total edible vegetable oil and soyabean oil in the U.S., Canada, Japan and the European Community, and rapeseed oil in Canada, Japan and the European Community are presented. In order to overcome specification problems, which have often plagued efforts to estimate the demand for individual vegetable oils, a market share approach is proposed. The market share equations when combined with estimates of the demand for total edible vegetable oil imply that the demand for rapeseed oil is more elastic than the demand for soyabean oil in all regions and that the European Community has by far the most elastic demand for both rapeseed and soyabean oil.