In order to more accurately examine developing trends in gross cargo throughput, we have modeled the probability distribution of cargo throughput. Gross cargo throughput is determined by the time spent by cargo ships ...In order to more accurately examine developing trends in gross cargo throughput, we have modeled the probability distribution of cargo throughput. Gross cargo throughput is determined by the time spent by cargo ships in the port and the operating efficiency of handling equipment. Gross cargo throughput is the sum of all compound variables determining each aspect of cargo throughput for every cargo ship arriving at the port. Probability distribution was determined using the Wald equation. The results show that the variability of gross cargo throughput primarily depends on the different times required by different cargo ships arriving at the port. This model overcomes the shortcoming of previous models: inability to accurately determine the probability of a specific value of future gross cargo throughput. Our proposed model of cargo throughput depends on the relationship between time required by a cargo ship arriving at the port and the operational capacity of handling equipment at the port. At the same time, key factors affecting gross cargo throughput are analyzed. In order to test the efficiency of the model, the cargo volume of a port in Shandong Province was used as an example. In the case study the actual results matched our theoretical analysis.展开更多
为探究影响我国沿海港口外贸货物吞吐量的因素,以及这些因素的影响因金融危机的爆发而发生的变化,建立基于贸易引力模型的我国沿海港口外贸货物吞吐量影响因素的向量自回归(Vector Auto Regression,VAR)模型,研究金融危机爆发前后交通...为探究影响我国沿海港口外贸货物吞吐量的因素,以及这些因素的影响因金融危机的爆发而发生的变化,建立基于贸易引力模型的我国沿海港口外贸货物吞吐量影响因素的向量自回归(Vector Auto Regression,VAR)模型,研究金融危机爆发前后交通运输固定投资、人民币实际有效汇率、外商直接投资、世界经济状况和国内经济状况对我国沿海港口外贸货物吞吐量的影响.由方差分解分析发现:对交通运输体系固定投资的增加在金融危机后较之金融危机之前更能提高沿海港口外贸货物吞吐量;人民币实际有效汇率和外商直接投资的波动在金融危机之前、后对沿海港口外贸货物吞吐量均不构成显著影响;金融危机后世界经济的复苏明显提高沿海港口外贸货物吞吐量;我国国内经济状况对沿海港口外贸货物吞吐量的影响在金融危机后大幅削弱.展开更多
基金the Shandong "TianJun" Soft Science Foundation under Grant No.03BS.
文摘In order to more accurately examine developing trends in gross cargo throughput, we have modeled the probability distribution of cargo throughput. Gross cargo throughput is determined by the time spent by cargo ships in the port and the operating efficiency of handling equipment. Gross cargo throughput is the sum of all compound variables determining each aspect of cargo throughput for every cargo ship arriving at the port. Probability distribution was determined using the Wald equation. The results show that the variability of gross cargo throughput primarily depends on the different times required by different cargo ships arriving at the port. This model overcomes the shortcoming of previous models: inability to accurately determine the probability of a specific value of future gross cargo throughput. Our proposed model of cargo throughput depends on the relationship between time required by a cargo ship arriving at the port and the operational capacity of handling equipment at the port. At the same time, key factors affecting gross cargo throughput are analyzed. In order to test the efficiency of the model, the cargo volume of a port in Shandong Province was used as an example. In the case study the actual results matched our theoretical analysis.
文摘为探究影响我国沿海港口外贸货物吞吐量的因素,以及这些因素的影响因金融危机的爆发而发生的变化,建立基于贸易引力模型的我国沿海港口外贸货物吞吐量影响因素的向量自回归(Vector Auto Regression,VAR)模型,研究金融危机爆发前后交通运输固定投资、人民币实际有效汇率、外商直接投资、世界经济状况和国内经济状况对我国沿海港口外贸货物吞吐量的影响.由方差分解分析发现:对交通运输体系固定投资的增加在金融危机后较之金融危机之前更能提高沿海港口外贸货物吞吐量;人民币实际有效汇率和外商直接投资的波动在金融危机之前、后对沿海港口外贸货物吞吐量均不构成显著影响;金融危机后世界经济的复苏明显提高沿海港口外贸货物吞吐量;我国国内经济状况对沿海港口外贸货物吞吐量的影响在金融危机后大幅削弱.
