国际贸易流量的类库伦模型及贸易流量强度分布函数的推导
Coulomb-like Model for International Trade Flow and Derivation of Distribution Function for Trade Flow Strength
摘要：
为了描述国际贸易流，我们提出了库仑力公式，其中电荷的大小代表国内生产总值（GDP），国家之间的距离是双边距离，空间距离和“介电常数”的乘积，而不是引力模型中使用的空间距离，允许它是时间依赖的。“介电常数”受到诸如战争、运输中断、贸易协定、社会、地理、政治、文化等因素的影响。国内生产总值和距离功率参数是利用国内生产总值高的国家的进出口交易数据估算的。我们还开发了一个贸易实力分布方程，该方程与世界银行十年来的数据相当吻合。
英文摘要：
To describe international trade flows, we propose the coulomb force formulation, in which the magnitude of the charge represents gross domestic product (GDP) and the distance between countries is the bilateral distance, the product of spatial distance and "dielectric constant," rather than the spatial distance as used in the gravitation model, allowing it to be time dependent. The "dielectric constant" is influenced by factors such as warfare, transportation disruptions, trade agreements, social, geography, politics, culture, and others. The GDP and distance power parameters were estimated using data from high-GDP countries' export-import transactions. We also developed a trade strength distribution equation that fits World Bank data reasonably well over a decade.
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