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An analysis of the effect of investor sentiment in a heterogeneous switching transition model for G7 stock markets

机译:G7股票市场异质转换过渡模型中投资者情绪的影响分析

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In line with Chiarella and He (2000) and Boswijk et al. (2007), this study examines the stock market dynamics in a behavioural heterogeneity framework. In particular, we. analyse the stock return dynamics in G7 countries over recent decades while considering the effect of heterogeneous investor sentiment. We develop an empirical and nonlinear heterogeneous stock price specification allowing for the presence of two types of investors (arbitrageurs and noise traders) and two regimes. With reference to the heterogeneous smooth transition regression model, we enable the price to switch smoothly between regimes after accounting for an endogenous change in investor sentiment. Our findings do not reject the hypothesis of the nonlinear investor sentiment effect on stock returns. Further, we show that two regimes characterize the stock price dynamics for which the price is closely governed by fundamentals in the first one, while investor sentiment drives the price in the second one. Our model, therefore, captures the main stylized facts observed in the market and shows good in- and out-of-sample forecasting power. (C) 2017 Elsevier B.V. All rights reserved.
机译:与Chiarella和He(2000)和Boswijk等人一致。 (2007年),这项研究检查了行为异质性框架下的股票市场动态。特别是我们。分析了七国集团(G7)国家近几十年来的股票收益动态,同时考虑了异类投资者情绪的影响。我们开发了一种经验非线性非线性股票价格规范,该规范允许存在两种类型的投资者(套利者和噪声交易者)和两种制度。参照异质平稳过渡回归模型,在考虑了投资者情绪的内生变化后,我们使价格能够在不同制度之间平稳切换。我们的发现并没有拒绝非线性投资者情绪对股票收益的影响这一假设。此外,我们证明了两种制度是股票价格动态的特征,在第一种机制中,价格受到基本面的支配,而在第二种机制中,投资者的情绪驱动着价格。因此,我们的模型捕获了市场上观察到的主要风格化事实,并显示出良好的样本内和样本外预测能力。 (C)2017 Elsevier B.V.保留所有权利。

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