基于有序度差分改进的系统协同度测度模型

Research on Synergy Level Measurement Model Based on Differential Change Rate

从协同学理论出发,在分析系统发展的动态性和惯性后,指出直接使用耦合协调度模型进行系统协同度测算,其测算结果无法客观反映系统真实的协同状态;在此基础上,通过引入子系统有序度的一阶后项差分,充分考虑子系统有序度的变化率及变化方向对系统协同发展的影响,提出了一种基于有序度差分改进的协同水平测度模型(DSLM模型)。通过选取甘肃省2006—2015年的面板数据,对甘肃省物流产业和国民经济的协同发展利用DSLM模型进行了测算,计算结果表明,DSLM模型对系统协同度的测算较为准确,能客观反映系统协同发展状态。

Based on synergy theory,this paper points out that when we calculate system＇s synergetic degree by directly applying the coupling coordination model,the result can not reflect a real situation of system＇s synergy objectively.On the basis,this paper proposes applying the first order backward difference of subsystem＇s degree of order to examine how the rate and direction of change effect the system＇s synergetic development.DSLM model———a synergetic level measurement model based on improvement of differential change rate has been applied to calculate the synergetic development between logistics industry and local economy of Gansu by using panel data of Gansu province during 2006—2015 period.The results show that DSLM model can reflect the real situation of the coordinated development of the system better than the original model.