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An empirical analysis of freight transport traffic modes in Brazil, 1996-2012

机译:1996-2012年巴西货运交通方式的实证分析

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This paper analyses the performance of freight transportation modes in Brazil - namely air, water, rail and road - from February 1996 to August 2012 by investigating their long memory properties using fractional integration and autoregressive models on monthly tonnage data. Two important features are analysed: the degree of dependence of transportation traffic across time and its seasonal structure over the period. Furthermore, the stability of parameters across the sample period is investigated, incorporating potential structural breaks in the data, which describe discontinuity in freight transportation traffic. Some policy implications are derived.
机译:本文通过使用分数积分和自回归模型对每月吨位数据进行调查,研究了1996年2月至2012年8月巴西货运模式(即航空,水,铁路和公路)的长效性能。分析了两个重要特征:运输量随时间的依存程度及其在此期间的季节性结构。此外,还研究了整个采样期间参数的稳定性,并在数据中纳入了潜在的结构性断裂,这些断裂描述了货运业务的不连续性。得出一些政策含义。

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