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为了揭示企业技术创新投资的演化行为与规律,构建以差分形式表示的企业技术创新投资经济增长非线性动力学模型。选取规模以上大中型工业企业的有关数据,采用差分演化算法进行了模型参数的优化,并对识别后的模型进行了计算机模拟,分析企业技术创新投资系统产生混沌运动的内在结构和外部扰动两大动力因素。得出的几点结论是:(1)可以通过调节人均研发经费投入与科技活动人员比率来改变企业技术创新投资系统的演化特性;(2)并不是对二者的投资越多越好;(3)可以利用系统分岔时的迅速增长契机实现企业的跨越式发展;(4)对二者的投资越大,系统进入分岔状态的速度就越快,走向混沌运动的速度也越快。
In order to reveal the evolutionary behavior and rules of technological innovation investment in enterprises, a non-linear dynamic model of economic growth of technological innovation investment in enterprises is constructed. Select the relevant data of large and medium-sized industrial enterprises above designated size, adopt the differential evolution algorithm to optimize the model parameters, and carry on the computer simulation to the identified model. Analyze the internal structure and external disturbance of the chaos movement of the enterprise technological innovation investment system Power factor. Some conclusions drawn are: (1) the evolutionary characteristics of the investment system of technological innovation in enterprises can be changed by adjusting the ratio of R & D expenditures per capita to those of scientific and technological activities; (2) the more investment is better, the better; ( 3) The leapfrog development of the enterprise can be realized by using the rapid growth opportunity when the system is bifurcated; (4) The greater the investment in the two systems, the faster the system enters the bifurcation state and the faster it moves towards chaos.