摘要
Analysis of freight rate volatility characteristics is a hot topic after year 2008 due to the effect of financial crisis in marine transportation.In this paper,we analyze the bulk freight rate index by detrended fluctuation analysis(DFA) method and discover the scaling behavior.Switching points(SPs),as the indicators of scaling behavior,can be eliminated after Vondr′ak noise reduction technique.Therefore,we conclude that highfrequency noise is the cause of SP.
Analysis of freight rate volatility characteristics is a hot topic after year 2008 due to the effect of financial crisis in marine transportation. In this paper, we analyze the bulk freight rate index by detrended fluctuation analysis （DFA） method and discover the scaling behavior. Switching points （SPs）, as the indicators of scaling behavior, can be eliminated after Vondrak noise reduction technique. Therefore, we conclude that high- frequency noise is the cause of SP.
基金
the MOE(Ministry of Education in China)Project of Humanities and Social Sciences(Nos.12YJCGJW001 and 14YJC630008)
the Interdiscipline Foundation of Social Science and Engineering of Shanghai Jiao Tong University(No.15JCMY11)
the Fund of Center for Teaching and Learning Development of Shanghai Jiao Tong University(No.CTLD16B3002)
the National Students Innovation Program of China(Nos.201610248001 and IPP12002)
the National Natural Science Foundation of China(No.51409157)
