Comment on: "Two-phase behaviour of financial markets"

M. Potters; J-P Bouchaud

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arXiv · cond-mat/0304514

Comment on: "Two-phase behaviour of financial markets"

M. Potters·J-P Bouchaud

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Abstract

In a recent article [Nature 421, 130 (2003)], Plerou, Gopikrishnan and Stanley report some evidence for an intriguing two-phase behavior of financial markets when studying the distribution of volume imbalance conditional to the local intensity of its fluctuations. We show here that this apparent phase transition is a generic consequence of the conditioning and exists even in the absence of any non trivial collective phenomenon.

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M. Potters, J-P Bouchaud. 2003-04-23. Comment on: "Two-phase behaviour of financial markets". https://arxiv.org/abs/cond-mat/0304514

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