长江干散货运价指数评价与优化

Evaluation and Optimization of the Yangtze River Dry Bulk Freight Index

长江干散货运价指数是监测水路运输市场供需平衡关系的重要观察指标之一,对其进行评价与优化,有利于更好发挥指数的经济监测作用。长江干散货运价指数以干散货运价历史数据为基础,运用SPSS软件并依据统计学指数理论,对指数无偏性、一致性和有效性进行定量评价。结果表明:干散货运价指数在样本代表性、指数结构等方面存在一些问题,并根据评价结果提出相应优化建议,为提高指数质量水平、助力长江航运高质量发展提供参考。

The Yangtze River Dry Bulk Freight Index is one of the important observation indicators for monitoring the supply-demand balance relationship in the waterway transportation market.Evaluating and optimizing the index is conducive to better playing its economic monitoring role.Based on historical datas of dry bulk freight rates,using SPSS software and statistical index theory,the unbiasedness,consistency and effectiveness of the index are evaluated quantitatively.The results indicate that there are some problems with the sample representativeness and index structure of the dry bulk freight index,and corresponding optimization suggestions are proposed based on the evaluation results,which can provide the reference for improving the quality level of the index and promoting the high-quality development of Yangtze River shipping.