A simple financial market model with chartists and fundamentalists: market entry levels and discontinuities

Fabio Tramontana, Frank Westerhoff and Laura Gardini ()

No 150, Quaderni di Dipartimento from University of Pavia, Department of Economics and Quantitative Methods

Abstract: We present a simple financial market model with interacting chartists and fundamentalists. Since some of these speculators only become active when a certain misalignment level has been crossed, the dynamics are driven by a discontinuous piecewise linear map. The model endogenously generates bubbles and crashes and excess volatility for a broad range of parameter values - and thus explains some key phenomena of financial markets. Moreover, we provide a complete analytical study of the model's dynamical system. One of its surprising features is that model simulations may appear to be chaotic, although only regular dynamics can emerge.

Keywords: financial market crisis; bull and bear market dynamics; discontinuous piecewise linear maps; border-collision bifurcations; period adding scheme. (search for similar items in EconPapers)
Pages: 27 pages
Date: 2011-07
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Citations: View citations in EconPapers (3)

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Related works:
Journal Article: A simple financial market model with chartists and fundamentalists: Market entry levels and discontinuities (2015)
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