2019冠状病毒病疫情期间欧盟农产品价格及其选定的决定因素

IF 0.9 Q4 AGRICULTURAL ECONOMICS & POLICY
M. Hamulczuk, Marta Skrzypczyk
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引用次数: 1

摘要

由SARS-CoV-2病毒爆发引起的大流行在全球范围内产生了广泛的社会经济后果。2019冠状病毒病危机的影响还包括生产、消费、贸易和农产品价格的变化。本文重点关注2019冠状病毒病危机对欧盟国家农产品生产者和零售价格的影响。这项研究基于欧盟国家的月度生产者和消费者食品价格指数。在估计COVID-19对价格的影响时,将实际价格变化与根据regARIMA模型计算的事后预测得出的反事实数字进行了比较。对价格变动原因的研究是基于定量和定性两种方法。在定量方法中,审查了实施限制的力度和各国的贸易状况对实际价格与预测的偏差的影响。为此,我们采用了基于截面数据的回归模型。结果表明,在国家之间和整个营销链中,农业食品商品价格的动态变化存在相当大的差异。在2019冠状病毒病前时期的国家粮食自给率与2019冠状病毒病危机第一阶段的生产者价格变化之间存在显著的负相关关系。反过来,在COVID-19危机期间,居家限制的力度对零售价格的形成也很重要。总的结论是,大流行期间农产品价格的反应在空间和时间上都有所不同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
European Union Agri-Food Prices During COVID-19 and their Seleceted Determinants
Abstract The pandemic caused by the outbreak of the SARS-CoV-2 virus has widespread socio-economic consequences worldwide. The implications of the COVID-19 crisis also include changes in production, consumption, trade, and agri-food commodity prices. This paper focuses on the repercussions of the COVID-19 crisis on producer and retail prices of agri-food commodities in European Union (EU) countries. The study is based on monthly producer and consumer food price indices in EU countries. In estimating the impact of COVID-19 on prices, actual price changes were compared with counterfactual figures derived from ex-post forecasts calculated according to regARIMA models. The study of the causes of price changes was based on both quantitative and qualitative approaches. In the quantitative approach, the impact of the strength of applied restrictions and the trade position of countries on the deviation of actual prices from the forecasts was examined. For this purpose, regression models based on cross-sectional data were applied. The results show that there is a quite significant variation in the dynamics of changes in agri-food commodity prices both among countries and across the marketing chain. A negative and statistically significant relationship has been found between country food self-sufficiency in the pre-COVID-19 period and changes in producer prices during the first phase of the COVID-19 crisis. In turn, the strength of stay-at-home restrictions was significant for retail price formation during the COVID-19 crisis. The general conclusion is that the responses of agri-food prices during the pandemic vary both spatially and over time.
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