Data Mining for Overreaction in Financial Markets
University of Michigan at Ann Arbor
University of Pittsburgh - Department of Mathematics
April 12, 2005
PROCEEDINGS OF THE IASTED INTERNATIONAL CONFERENCE ON SOFTWARE ENGINEERING AND APPLICATIONS (SEA), Phoenix, AZ, November 14-16, 2005, W.-T. Tsai and M.H. Hamza, eds., Vol. 467, pp. 28-35, ACTA Press, 2005
We study overreaction and the cumulative effect of the consecutive local overreaction patterns in financial markets. The 'overreaction diamond' pattern  is one of the key components of a financial market bubble. The cumulative effect of the consecutive short term overreactions arising from the deviation of stock prices from their fundamentals can be explained by attribution theory, feedback traders, affect and representativeness theories, and reference points in investments. We study large set of financial data and propose a data mining method by exploiting the relative cumulative sentiment of the investors. This leads to a potential for the implementation of suitable algorithms and the preparation of software packages that can be useful for prediction of various stages of overreaction and bubbles.
Number of Pages in PDF File: 8
Keywords: data mining, overreaction, computational finance software, financial bubble, prediction, financial markets
JEL Classification: G12, C12, C22, C23, C53, C63, C87, D03, D46, D52
Date posted: June 1, 2009 ; Last revised: June 5, 2009
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