跨水域内河水运干散货运价指数编制法研究——以湘江、长江干散货航运为例

Study on the Compilation Method of Dry and Freight Price Index for Inter-provincial Water Transport——Taking dry bulk shipping in Xiangjiang and Yangtze Rivers as an example

为计算跨水域的内河水运干散货航运市场的运价指数,本文分析国内外关于运价指数的研究,并指出其局限性。实地走访多家航运公司获取大量的数据,分析了我国内河航运的特点。考虑不同货物运量和运价的相关系数,提出了基于相关系数的跨水域内河干散货运价指数的编制方法。本文采用湘江、长江干散货航运的具体数据进行实例计算,并运用ADF检验和协整检验进行测试,验证了基于相关系数的跨水域的内河干散货运价指数计算模型的正确性和编制方法的有效性,并根据结论提出相关建议。

In order to calculate the inland river water transport freight index,Firstly,the domestic and foreign formula of calculating index is introduced, and three limitations are pointed out. Secondly,some statistics of freight are obtained by visiting the shipping company and the characteristics of inland river navigation in China are analyzed. Thirdly, the influence of various factors on the freight is considered, the correlation coefficient is applied on the calculation of the weight, and a formula of calculating freight index is put forward.Then, the specific data of dry bulk shipping in Xiangjiang River and Yangtze River are used for calculation as an example and the conclusion is proved by conducting ADF test and cointegration test. Finally, a calculation method of inland river water transport dry bulk freight index cross different watershed is established.