Pump Prices and Oil Prices: A Tale of Two Directions

It has been argued that retail gasoline prices adjust more quickly to crude oil price increases than to price decreases. We investigate this issue using the statewide data on weekly retail gasoline prices in the United States between January 2000 and June 2007. Our analysis does not confirm the prediction that gasoline prices adjust more quickly to price increases in crude oil prices. On the contrary, the results suggest that in some geographic areas gasoline prices could change faster when crude oil prices decrease. These findings suggest that a national or a one size fits all energy policy for the United States may be misguided.

基于MR和TSA的成品油价格模型

通过对影响成品油价格的众多因素进行数据整理分析,首先建立了多元回归模型对其数据进行预测;然后建立了二次移动平均预测模型、三次指数平滑预测模型对其进行时间序列分析预测。综合三种方法对近15个时间片的油价预测值与统计值进行比较与误差分析,仿真结果表明,多元回归模型和时间序列分析的三次指数平滑预测达到了较好的效果。