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Regime shift, speculation, and stock price

Ke Du, Yishu Fu, Zhenjiang Qin and Shuoxun Zhang ()

Research in International Business and Finance, 2020, vol. 52, issue C

Abstract: We investigate the impacts of speculation on stock price and return volatility in a framework with regime shifting. We find that greater difference in beliefs about the probability of bad state leads to higher stock prices. The intuition is that in periods of higher dispersion of beliefs, the investors perceive greater speculative opportunities, leading to increased demands and valuations of the stock. When investors agree with each other on the state of dividend growth, they have a stronger incentive to invest in the riskless bond, when becoming more pessimistic about the dividend growth. As a result, the demand and the valuations of stock decrease. Moreover, higher level of heterogeneity in beliefs gives rise to higher volatility of the stock returns, even in the absence of dividend shocks. Furthermore, with homogeneous beliefs, return volatility with respect to investors’ beliefs follows an inverted-U shape.

Keywords: Heterogeneous beliefs; Regime shifting; Equilibrium; Stock price; Return volatility (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eee:riibaf:v:52:y:2020:i:c:s027553191931027x

DOI: 10.1016/j.ribaf.2020.101181

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