Estimating behavioural heterogeneity under regime switching

Financial markets are typically characterized by high (low) price level and low (high) volatility during boom (bust) periods, suggesting that price and volatility tend to move together with different market conditions/states. By proposing a simple heterogeneous agent model of fundamentalists and cha...

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Bibliographic Details
Main Authors: Chiarella, Carl, He, Xue-Zhong, Huang, Weihong, Zheng, Huanhuan
Other Authors: School of Humanities and Social Sciences
Format: Article
Language:English
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/107489
http://hdl.handle.net/10220/17330
http://dx.doi.org/10.1016/j.jebo.2012.02.014
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Institution: Nanyang Technological University
Language: English
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Summary:Financial markets are typically characterized by high (low) price level and low (high) volatility during boom (bust) periods, suggesting that price and volatility tend to move together with different market conditions/states. By proposing a simple heterogeneous agent model of fundamentalists and chartists with Markov chain regime-dependent expectations and applying the S&P 500 data from January 2000 to June 2010, we show that the estimation of the model matches well with the boom and bust periods in the US stock market. In addition, we find evidence of time-varying behavioural heterogeneity within-group and that the model exhibits good forecasting accuracy.