Statistical properties of world investment networks

Dong-Ming Song, Zhi-Qiang Jiang and Wei-Xing Zhou

Physica A: Statistical Mechanics and its Applications, 2009, vol. 388, issue 12, 2450-2460

Abstract: We have performed a detailed investigation on the world investment networks constructed from the Coordinated Portfolio Investment Survey (CPIS) data of the International Monetary Fund, ranging from 2001 to 2006. The distributions of degrees and node strengths are scale-free. The weight distributions can be well modeled by the Weibull distribution. The maximum flow spanning trees of the world investment networks possess two universal allometric scaling relations, independent of time and the investment type. The topological scaling exponent is 1.17±0.02 and the flow scaling exponent is 1.03±0.01.

Keywords: Econophysics; Complex networks; World investment network; Probability distribution; Allometric scaling (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (16)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:388:y:2009:i:12:p:2450-2460

DOI: 10.1016/j.physa.2009.03.004

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