Time Varying Risk Aversion

Working Paper: CEPR ID: DP9589

Authors: Luigi Guiso; Paola Sapienza; Luigi Zingales

Abstract: We use a repeated survey of an Italian bank?s clients to test whether investors? risk aversion increases following the 2008 financial crisis. We find that both a qualitative and a quantitative measure of risk aversion increases substantially after the crisis. After considering standard explanations, we investigate whether this increase might be an emotional response (fear) triggered by a scary experience. To show the plausibility of this conjecture, we conduct a lab experiment. We find that subjects who watched a horror movie have a certainty equivalent that is 27% lower than the ones who did not, supporting the fear-based explanation. Finally, we test the fear-based model with actual trading behavior and find consistent evidence.

Keywords: fear; financial crisis; risk aversion

JEL Codes: D1; D8; G11; G12


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
2008 financial crisis (F65)Increased individual risk aversion (D11)
Fear (Y60)Increased individual risk aversion (D11)
Increased individual risk aversion (D11)Decreased certainty equivalent (D81)
Fear induced by the financial crisis (G01)Increased individual risk aversion (D11)
Fear induced by horror movie (G41)Decreased certainty equivalent (D81)

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