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arXiv 1205.4589q-fin.GNphysics.soc-ph
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国际贸易网络的结构哈密顿量

Structural Hamiltonian of the international trade network

Agata Fronczak

摘要:

众所周知,没有一个国家是孤立的经济孤岛。所有国家都参与全球经济,并通过贸易和金融联系在一起。在这里,我们分析国际贸易网络(ITN),即国家之间进出口关系的网络。我们表明,在每年超过50年的分析期间(自1950年以来)的网络是一个典型的代表最大随机网络的合奏。ITN的二进制和加权版本的特征结构哈密顿制定和讨论。特别是,给定的二进制表示的ITN(即二进制网络的贸易渠道),我们表明,网络的伙伴关系在贸易中的配置模型是很好地描述。我们还表明,在加权版本的ITN,双边贸易量(即有向连接,代表国家之间的贸易/货币流动)的特点是只由产品的贸易国的GDP,在著名的贸易引力模型。

英文摘要:

It is common wisdom that no nation is an isolated economic island. All nations participate in the global economy and are linked together through trade and finance. Here we analyze international trade network (ITN), being the network of import-export relationships between countries. We show that in each year over the analyzed period of 50 years (since 1950) the network is a typical representative of the ensemble of maximally random networks. Structural Hamiltonians characterizing binary and weighted versions of ITN are formulated and discussed. In particular, given binary representation of ITN (i.e. binary network of trade channels) we show that the network of partnership in trade is well described by the configuration model. We also show that in the weighted version of ITN, bilateral trade volumes (i.e. directed connections which represent trade/money flows between countries) are only characterized by the product of the trading countries' GDPs, like in the famous gravity model of trade.

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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