Characterizing Complex Systems: Scale-Free Networks

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Complex systems often share certain features, including a hierarchical structure characterized as a network kind of structure.
Scale-free networks in particular show up over and over again in complex systems.
A paper by sociologist Brooke Harrington and her collaborators shows that a previously studied system can be thought of as a complex system and a scale-free network.

The modern world is large and interconnected, and there are a lot of systems that might be important to how it functions but about which most people are barely aware. One of these is the offshore wealth management network, which wealthy individuals can use both legitimately (to invest and plan their money) and less legitimately (to avoid taxation or hide questionable practices generally). Brooke Harrington is a sociologist who has studied offshore wealth management, including by training to be one. In a recent paper, she and colleagues analyze networks of offshore wealth managers as a complex system, uncovering power-law behavior and interesting nation-dependent network structures.

Web site with transcript: https://www.preposterousuniverse.com/podcast/2023/05/22/237-brooke-harrington-on-offshore-wealth-as-a-complex-system/

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Brooke Harrington received her Ph.D. in sociology from Harvard University. She is currently a professor of sociology at Dartmouth College. Among her awards are the IPM Outstanding Book Award from the American Sociological Association. She is the author of Capital Without Borders: Wealth Management and the One Percent.

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