Asset Price Dynamics in a Financial Market with Heterogeneous Trading Strategies and Time Delays

Giuseppe Garofalo and Alessandro Sansone

No 88, Working Papers in Public Economics from Department of Economics and Law, Sapienza University of Roma

Abstract: In this paper we present a continuous time dynamical model of heterogeneous agents interacting in a financial market where transactions are cleared by a market maker. The market is composed of fundamentalist, trend following and contrarian agents who process information from the market with different time delays. Each class of investor is characterized by path dependent risk aversion. We also allow for the possibility of evolutionary switching between trend following and contrarian strategies. We find that the system shows periodic, quasi-periodic and chaotic dynamics as well as synchronization between technical traders. Furthermore, the model is able to generate time series of returns that exhibit statistical properties similar to those of the S&P500 index, which is characterized by excess kurtosis, volatility clustering and long memory.

Keywords: Dynamic asset pricing; Heterogeneous agents; Complex dynamics; Strange attractors; Chaos; Intermittency; Stock market dynamics; Synchronization. (search for similar items in EconPapers)
JEL-codes: G11 G12 G14 (search for similar items in EconPapers)
Pages: 23
Date: 2005-10
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Citations: View citations in EconPapers (2)

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Related works:
Journal Article: Asset price dynamics in a financial market with heterogeneous trading strategies and time delays (2007)
Working Paper: Asset Price Dynamics in a Financial Market with Heterogeneous Trading Strategies and Time Delays (2006)
Working Paper: Asset Price Dynamics in a Financial Market with Heterogeneous Trading Strategies and Time Delays (2005)
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