Related Experiment Videos
Self-organized complexity in economics and finance
H E Stanley1, L A N Amaral, S V Buldyrev
1Center for Polymer Studies and Department of Physics, School of Management, Boston University, Boston, MA 02215, USA. hes@bu.edu
Summary
Physicists and economists find universal scaling laws in economics, similar to earthquake patterns and organizational behavior. These findings, though lacking firm theoretical basis, offer new insights into economic systems.
Area of Science:
- Interdisciplinary science
- Economics
- Physics
Background:
- Economists and physicists employ distinct methodologies in economic research.
- Understanding economic phenomena through diverse scientific lenses can yield novel insights.
Purpose of the Study:
- To explore similarities and differences between economic and physics approaches to economic problems.
- To present new, universal scaling laws discovered in economic systems.
- To justify the value of interdisciplinary perspectives in economics.
Main Methods:
- Comparative analysis of methodologies used by economists and physicists.
- Review of empirical data to identify universal scaling laws.
- Analogy to physical phenomena such as Gutenberg-Richter law and phase transitions.
Main Results:
- Identified a universal power-law distribution for stock market price fluctuations (exponent -4).
- Discovered an inverse correlation between organization size and size fluctuations (exponent ~0.2).
- Observed economic phenomena analogous to phase transitions in spin systems.
Conclusions:
- The identified scaling laws, while empirically supported, require further theoretical development.
- Interdisciplinary approaches, particularly from physics, can uncover fundamental patterns in economics.
- Economic systems exhibit universal behaviors comparable to those in natural sciences.