Investor Sentiment, Disagreement, and Breadth-Return Relationship

Investor Sentiment, Disagreement, and Breadth-Return Relationship
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投资者情绪、分歧和广度-回报关系

DOI:
10.2139/ssrn.1743848
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发表时间:
2012-07
期刊:
影响因子:
5.4
通讯作者:
Liyan Yang
Liyan Yang
中科院分区:
管理学1区
文献类型:
--
作者:
Ling Cen;Hai Lu;Liyan Yang

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我们研究了横截面的宽度-收益关系,假设投资者受到市场情绪持有偏见的信念,在总量。通过动态多资产模型,我们预测,广度-回报关系可以是正的或负的,这取决于两个抵消力量的相对强弱-分歧和情绪。我们发现的证据与我们的预测一致。当情绪效应较小时,广度收益率为正相关。然而,当(i)整个市场情绪的时间序列变化很高,(ii)公司特定的暴露于整个市场情绪变化的横截面离散度很大时,这种关系就变成了负的。我们的统一框架调和了一些看似不一致的实证研究,在这方面的文献,并解释令人费解的截面回报模式,在互联网泡沫和次贷危机期间观察到的。这篇论文被金融界的布拉德巴伯接受了。
We study the cross-sectional breadth--return relation by assuming that investors subject to market sentiment hold a biased belief in the aggregate. With a dynamic multiasset model, we predict that the breadth--return relationship can be either positive or negative depending on the relative strength of two offsetting forces---disagreement and sentiment. We find evidence consistent with our predictions. The breadth--return relationship is positive when the sentiment effect is small. However, the relationship becomes negative when (i) the time-series variation of market-wide sentiment is high and (ii) the cross-sectional dispersion of firm-specific exposure to market-wide sentiment variation is large. Our unified framework reconciles a few seemingly inconsistent empirical studies in this literature and explains puzzling cross-sectional return patterns observed during the Internet bubble and the subprime crisis periods. This paper was accepted by Brad Barber, finance.
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