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The US airline industry: persistence and breaks

机译:美国航空业:坚持与突破

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This article examines the degree of persistence and breaks in the US airline industry. We use innovative seasonal and non-seasonal fractional integration and autoregressive models, which are more flexible than the standard approaches employed in the literature. Our model focuses on three important series namely revenue passenger mile, total revenue tonne miles and revenue passenger enplanement, disaggregated into domestic and international. We found first that all series are highly persistent with values for the degree of differentiation equal to or higher than 1 in the majority of the cases, especially with the international data. Moreover, a structural break is clearly identified in September 2001. Policy implications are then derived.
机译:本文研究了美国航空业的持久性和破裂程度。我们使用创新的季节和非季节分数积分和自回归模型,它们比文献中采用的标准方法更灵活。我们的模型着重于三个重要的系列,即收入客运里程,总收入吨里程和收入客运量,分为国内和国际两个类别。我们首先发现,所有序列都是高度持久的,在大多数情况下,尤其是国际数据,其分化程度的值等于或高于1。此外,在2001年9月明确确定了结构性中断。然后得出了政策含义。

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