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Dynamic structural and topological phase transitions on the Warsaw Stock Exchange: A phenomenological approach | | A. Sienkiewicz
; T. Gubiec
; R. Kutner
; Z. R. Struzik
; | | Date: |
28 Jan 2013 | | Abstract: | We study the crash dynamics of the Warsaw Stock Exchange (WSE) by using the
Minimal Spanning Tree (MST) networks. We find the transition of the complex
network during its evolution from a (hierarchical) power law MST network,
representing the stable state of WSE before the recent worldwide financial
crash, to a superstar-like (or superhub) MST network of the market decorated by
a hierarchy of trees (being, perhaps, an unstable, intermediate market state).
Subsequently, we observed a transition from this complex tree to the topology
of the (hierarchical) power law MST network decorated by several star-like
trees or hubs. This structure and topology represent, perhaps, the WSE after
the worldwide financial crash, and could be considered to be an aftershock. Our
results can serve as an empirical foundation for a future theory of dynamic
structural and topological phase transitions on financial markets. | | Source: | arXiv, 1301.6506 | | Services: | Forum | Review | PDF | Favorites | |
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