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基于空间计量的水果价格形成及传导研究——以苹果、柑橘和香蕉为例

Study on Price Formation and Transmission of Fruits Based on Spatial Econometric Model——Set Apple, Citrus and Banana for Example

  • 摘要: 本文运用Moran 指数测度了苹果、柑橘和香蕉价格地区间的空间相关性,在此基础上构建了空间面板计量模型,实证研究了地区间苹果、柑橘和香蕉价格的形成及空间传导。结果表明,我国苹果、柑橘和香蕉价格呈现明显的空间相关性,国内这三种水果市场趋于整合;地区产量、销售成本、人均收入水平、城镇化率及替代品价格是影响三种水果价格形成的重要因素;苹果、香蕉和柑橘的地理空间系数分别高达0.91、0.91和0.69,经济水平空间系数分别为0.86、0.51和0.62,对外贸易水平空间系数分别为0.13、0.64和0.42,苹果、香蕉的市场保护水平空间系数分别为0.35和0.36,说明地理距离、市场保护程度差异、对外开放程度差异及经济发展水平差异是三种水果价格空间传导的制约因素。

     

    Abstract: This paper uses Moran’s index to measure the spatial correlation of apple, citrus and banana price among provinces in China, on which, a spatial panel econometric model is built to study the formation and the spatial transmission of apple, citrus and banana price among provinces. The results show that the apple, citrus or banana prices are spatially dependent among provinces, that is, the domestic markets of apple, citrus or banana are becoming an integrated one. Meanwhile, the price of apple, citrus or banana of one province is affected by its yield, sale cost, per capita income, urbanization rate and price of its substitutes. Besides, the spatial coefficient of geography of apple, citrus or banana price separately is 0.91,0.91and 0.69, the spatial coefficient of development level of which separately is 0.86,0.51and 0.62, the spatial coefficient of openness level of which separately is 0.13,0.64and 0.42, the spatial coefficient of local market protection of apple or banana price separately is 0.35and 0.36, which point that factors such as geographic distance, difference of local market protection, openness level and economic development among provinces block the spatial transmission of apple, citrus or banana price among provinces.

     

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