船舶岸电政策下港航企业低碳行为演化研究

Evolution study on low-carbon behavior of port and shipping enterprises based on shore-to-ship power policy

为探究港航企业在船舶岸电政策下推进岸电应用的低碳行为演化路径,构建政府、港口企业、航运公司三方参与的演化博弈模型,判断在有限理性条件下各主体决策选择行为的稳定性状态,并通过MATLAB数值仿真分析政策变化对系统演化路径的影响。研究表明:系统存在3个稳定均衡点,分别对应船舶岸电发展过程中的三个阶段,初期、中期、成熟期;政府在推进船舶岸电发展中起主导作用,其积极制定并落实相关政策可促进港航企业选择使用岸电。针对货运码头岸电使用率较低的现状,补贴力度比监管力度作用更强,后期政府应加大对岸电使用的系列补贴。

To explore the low-carbon behavior evolution path of port and shipping enterprises in promoting the application of shore power under the shore-to-ship power policy,a tripartite evolutionary game model with the government,port enterprises and shipping companies is constructed to judge the stability state of each stakeholder s decision choice behavior under the condition of limited rationality.The influence of policy changes on the system evolution path is analyzed through MATLAB numerical simulation.Research shows that:there are three stable equilibrium points in the system,which correspond to three stages in the development process of shore-to-ship power,the preliminary state,intermediate state and mature state;the government plays a leading role in promoting the development of shore-to-ship power,and its active formulation and implementation of relevant policies can promote port and shipping enterprises to choose to use shore power.For the current situation of low utilization rate of shore power at cargo terminals,the subsidy intensity is stronger than the regulatory effort,so the government should increase the series of subsidies for shore power use in the later period.