# Power laws and symmetries in a minimal model of financial market economy

@article{Ziyin2022PowerLA,
title={Power laws and symmetries in a minimal model of financial market economy},
author={Li Ziyin and Katsuya Ito and Kentaro Imajo and Kentaro Minami},
journal={Physical Review Research},
year={2022}
}
• Published 13 June 2022
• Economics
• Physical Review Research
A financial market is a system resulting from the complex interaction between participants in a closed economy. We propose a minimal microscopic model of the financial market economy based on the real economy’s symmetry constraint and minimality requirement. We solve the proposed model analytically in the mean-field regime, which shows that various kinds of universal power-law-like behaviors in the financial market may depend on one another, just like the critical exponents in physics. We then…

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