Song, Dong-Ming; Jiang, Zhi-Qiang; Zhou, Wei-Xing - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 12, pp. 2450-2460
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...