Synchronization Model for Stock Market Asymmetry

Details Synchronization Model for Stock Market Asymmetry Synchronization Model for Stock Market Asymmetry

2006-04-18

arxiv.org/abs/physics/0604137v2

Physics

Physics and Society

4 pages, 4 figures

Scientific paper

10.1088/1742-5468/2006/11/L11001

The waiting time needed for a stock market index to undergo a given percentage change in its value is found to have an up-down asymmetry, which, surprisingly, is not observed for the individual stocks composing that index. To explain this, we introduce a market model consisting of randomly fluctuating stocks that occasionally synchronize their short term draw-downs. These synchronous events are parameterized by a ``fear factor'', that reflects the occurrence of dramatic external events which affect the financial market.

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