過去已有很多關於蔬菜彈性的研究，但較無人探討其他因素對於彈性的影響，本文想研究的是針對台北都會區之甘藍菜蔬菜需求彈性，觀察蔬菜彈性在其他產品價格變化或天氣條件改變時，蔬菜彈性的改變幅度大小。本研究採用台北農產運銷有限公司中台北一、台北二之蔬菜拍賣統計數據提供之2013年1月至2018年資料，利用多元迴歸分析法，以此了解其他產品價格和天氣條件如何影響蔬菜彈性變化。

實證結果顯示，根莖菜類蔬菜、鹹菜等作為替代品的蔬菜和甘藍菜需求彈性負數顯著關係，符合過去研究結果，在葉菜類蔬菜的部分皆呈現不顯著，而在氣候條件方面皆呈現不顯著，可能是因為台北都會區為非生產地區，故不受天氣影響。

In the past, there have been many studies on the elasticity of vegetables, but less people talked about the impact of other factors on elasticity. The purpose of this article is to study the demand elasticity of cabbage vegetables in the Taipei metropolitan area. Observing the elasticity of vegetables when the prices of other products change or weather conditions change. This study uses statistics data of vegetable provided by Taipei Agricultural Products Marketing Corporation from June January 2013 to Apirl 2018. Use multiple regression analysis to understand how other product prices and weather conditions affect the elasticity of vegetables. The empirical results show that there is a significant negative relationship between the elasticity of demand for cabbages and alternatives to root vegetables and pickles, which is in line with past research results. It is not significant in leafy vegetables parts, The climate conditions are not significant, probably because the Taipei metropolitan area is a non-producing area, so it is not affected by the weather.

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