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首页> 外文期刊>Journal of Agricultural and Applied Economics >Disentangling corn price volatility: the role of global demand, speculation, and energy.
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Disentangling corn price volatility: the role of global demand, speculation, and energy.

机译:消除玉米价格波动的作用:全球需求,投机和能源的作用。

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摘要

Despite extensive literature on contributing factors to the high commodity prices and volatility in the recent years, few have examined these causal factors together in one analysis. We quantify empirically the relative importance of three factors: global demand, speculation, and energy prices/policy in explaining corn price volatility. A structural vector auto-regression model is developed and variance decomposition is applied to measure the contribution of each factor in explaining corn price variation. We find that speculation is important, but only in the short run. However, in the long run, energy is the most important followed by global demand.
机译:尽管近年来有关导致高商品价格和波动性的因素的文献很多,但很少有人在一项分析中一起研究了这些因果关系。我们通过经验量化三个因素的相对重要性:全球需求,投机和能源价格/政策在解释玉米价格波动时。建立了结构向量自回归模型,并应用方差分解来衡量每个因素在解释玉米价格变化中的作用。我们发现投机很重要,但仅在短期内如此。但是,从长远来看,能源是最重要的,其次是全球需求。

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