Return predictability and stock market crashes in a simple rational expectations model

Arbeitspapier

This paper presents a simple rational expectations model of intertemporal asset pricing. It shows that heterogeneous risk aversion of investors is likely to generate declining aggregate relative risk aversion. This leads to predictability of asset returns and high and persistent volatility. Stock market crashes may be observed if relative risk aversion differs strongly across investors. Then aggregate relative risk aversion may sharply increase given a small impairment in fundamentals so that asset prices may strongly decline. Changes in aggregate relative risk aversion may also lead to resistance and support levels as used in technical analysis. For numerical illustration we propose an analytical asset price formula.

Object Details

• Language: Englisch

References and Relationships

• Bibliographic citation: Series: CoFE Discussion Paper ; No. 05/05

Classification and Topics

• Classification: Wirtschaft ; Asset Pricing; Trading Volume; Bond Interest Rates
• Subject: Aggregate relative risk aversion ; Equilibrium asset price processes ; Excess Volatility ; Return predictability ; Stock market crashes

Contributors, Places and Time

• Event: Geistige Schöpfung
• (who): Lüders, Erik ; Franke, Günter
• Event: Veröffentlichung
• (who): University of Konstanz, Center of Finance and Econometrics (CoFE)
• (where): Konstanz
• (when): 2005

Further information

• Handle: http://hdl.handle.net/10419/32183
• URN: urn:nbn:de:bsz:352-opus-17807
• Last update: 10.03.2025, 11:45 AM CET