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Modeling Volatility of Baltic Dry Bulk Freight Index

机译:波罗的海干散货货运指数的造型波动性

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The paper is to investigate features of fluctuation of international dry bulk shipping market using Baltic dry bulk freight index. After fundamental statistical analysis on data, R/S and GPH tests are employed to model long memory of volatility of the indices, which interprets the existence of long memory and then leverage effect in the market subdivided by ship types including Handymax, Panamax, and Capesize. Moreover, VaR (value-at-risk) of spot freight rates in the dry bulk shipping market with EGARCH (Exponential ARCH) VaR model is used to further the study on volatility of the indices because of the daily return series with factors of volatility clustering and significant ARCH (Autoregressive Conditional Heteroskedastic) and the distribution with characteristics of fat tail. The empirical results suggest the operators and investors in the dry bulk shipping market to increase operational profits and reduce investment risks according to the long memory and the VaR.
机译:本文是调查使用波罗的海干散货货运指数的国际干散装航运市场波动的特征。经过对数据的基本统计分析,R / S和GPH测试被用于模拟索引的波动率的长记忆,这解释了长记忆的存在,然后在市场上施用船舶类型,包括船舶类型,包括船舶,巴拿马和普通地区。此外,由于每日返回系列具有挥发性聚类因素,使用与蜂酸(指数拱门)var模型的现货运输市场中现货运输市场的var(价值风险)用于进一步研究指数的波动性研究和重要的拱形(自回归条件异质胶质)和脂肪尾部特征的分布。经验结果表明,根据长记忆和VAR,运营商和投资者在干散货航运市场中提高运营利润,减少投资风险。

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