Genetic algorithms applied to an evolutionary model of industrial dynamics

Gustavo C.S. Passos, Martin H. Barrenechea
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引用次数: 3

Abstract

In order to verify the effects of machine learning in a market structure, an evolutionary model containing firms that use a genetic algorithm to decide their investment in innovative R&D was developed. These firms share the market, with two other types of firms, those with a fixed rate of investment and those with random strategies. A model of industrial dynamics was implemented and simulated using several population distributions of the three types of firms. The availability of external credit and the length of learning periods were evaluated and their effects, in the market structure, analysed. The simulations results brought contrasting findings when compared to previous works, as it confirmed that machine learning led to market dominance, but the same did not occur when considering the improvement of technological efficiency and social welfare.

应用于工业动态演化模型的遗传算法
为了验证机器学习在市场结构中的效果,我们开发了一个进化模型,该模型包含了使用遗传算法来决定其创新研发投资的企业。这些公司与另外两种类型的公司共享市场,一种是固定投资率的公司,另一种是随机策略的公司。利用这三种类型企业的几种人口分布,建立了产业动态模型并进行了模拟。评估了外部信贷的可用性和学习时间的长短,并分析了它们在市场结构中的影响。与之前的研究相比,模拟结果带来了截然不同的结果,因为它证实了机器学习导致了市场主导地位,但在考虑技术效率和社会福利的提高时却没有出现同样的结果。
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