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arXiv 2109.05262physics.soc-phecon.GNq-fin.EC
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GDP和贸易的全球动态

Global dynamics of GDP and trade

Abhin Kakkad, Arnab K. Ray

摘要:

我们使用逻辑斯蒂方程来模拟世界上GDP最高的六个国家,即美国,中国,日本,德国,英国和印度的GDP和贸易的动态。根据世界银行提供的经济数据模型,我们预测了国内生产总值和贸易增长的最大值,以及指数增长可以持续的时间。我们将GDP和贸易的相关增长设置为自治二阶动力系统的相解。GDP和贸易之间存在幂律关系,其指数似乎将六个国家的经济分为两种类型。在有利于经济增长的条件下,我们的结论具有普遍有效性。

英文摘要:

We use the logistic equation to model the dynamics of the GDP and the trade of the six countries with the highest GDP in the world, namely, USA, China, Japan, Germany, UK and India. From the modelling of the economic data, which are made available by the World Bank, we predict the maximum values of the growth of GDP and trade, as well as the duration over which exponential growth can be sustained. We set up the correlated growth of GDP and trade as the phase solutions of an autonomous second-order dynamical system. GDP and trade are related to each other by a power law, whose exponent seems to differentiate the six national economies into two types. Under conducive conditions for economic growth, our conclusions have general validity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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