园艺作物的供给响应:以查谟和克什米尔地区的苹果和梨为例

M. H. Wani, Huma Sehar, R. Paul, A. Kuruvila, Ishfaq Hussain
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引用次数: 7

摘要

苹果和梨在查谟和克什米尔的园艺部门占有重要地位。自20世纪90年代以来,种植面积一直在显著扩大。这些作物的先进技术已经合理化并被种植者采用;然而,水果供应的季节性和年度变化继续影响批发和消费水平的价格。本研究采用纳洛夫模型估计供给响应,采用恩格尔-格兰杰检验和向量误差修正模型估计长期和短期动态。研究表明,与梨的价格相比,苹果的价格变化更大。苹果和梨的价格之间存在相关性,表明这两种商品的价格之间存在长期和短期关系。结果显示出较高的R2值(95%),并估计出苹果的短期和长期价格弹性分别为0.32和0.33,梨的价格弹性分别为0.03和0.28。结果进一步表明,梨的价格对苹果的价格有显著的正向影响。研究得出结论,如果苹果的价格上涨,人们可以选择梨,这是一种替代作物。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Supply Response of Horticultural Crops: The Case of Apple and Pear in Jammu & Kashmir
The apple and pear have a significant place in the horticulture sector of Jammu & Kashmir. The planted areas have been expanding quiet significantly since 1990s. Advanced technologies for these crops have been rationalized and adopted by the growers; however, seasonal and annual variations of the fruit supplies continue to characterize prices at both wholesale and consumption levels. In this study, Nerlovian model has been used to estimate supply response, Engle- Granger test and Vector Error Correction Model have been used to estimate the long-run and short-run dynamics. The study has revealed that the price of apple has more variation compared to price of pear. The existence of correlation between the prices of apple and pear suggests that there exist both long-run and short-run relationships between the prices of these commodities. The results have exhibited a high value of R2 (95%) and estimated own price elasticities of 0.32 and 0.33 in apple and 0.03 and 0.28 in pear, respectively in short- and long-run. The results have further revealed that the price of pear has a positive and significant impact on price of apple, as demonstrated by their respective coefficients. The study has concluded that if price of apple increases, people can opt for pear which has turned out to be an alternative crop.
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