Munich Personal RePEc Archive

Flash Crashes: The Role of Information Processing Based Subordination and the Cauchy Distribution in Market Instability

Parker, Edgar (2016): Flash Crashes: The Role of Information Processing Based Subordination and the Cauchy Distribution in Market Instability. Published in: Journal of Insurance and Financial Management , Vol. 2, No. 2 (15 September 2016): pp. 90-103.

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Abstract

While a wide variety of hypotheses have been offered to explain the anomalous market phenomena known as a “Flash Crash”, there is as of yet no consensus among financial experts as to the sources of these sudden market collapses. In contrast to the behavior expected from standard financial theory, both the equity and bond markets have been thrown into freefall in the absence of any significant news event. The author posits that a combination of probability and information theory, and diffusion dynamics offers a relatively simple explanation of the causes of some of these dramatic events. This new avenue of research also suggests new policies or measures to lower the probability of occurrence and to mitigate the effects of these extreme events.

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