The macroeconomic effects of uncertainty and risk aversion shocks

Brendan Berthold

European Economic Review, 2023, vol. 154, issue C

Abstract: This paper identifies two types of volatility shocks, namely quantity and price of risk shocks, which can intuitively be interpreted as uncertainty and risk aversion shocks, respectively. Identification is achieved in a shock-restricted SVAR framework using a combination of narrative and external variable restrictions. We find that uncertainty shocks have large negative effects on output, while risk aversion shocks are particularly damaging to asset prices and are deflationary. We also quantify to which extent the endogenous response of risk aversion can exacerbate the effects of uncertainty shocks, thereby providing an estimate of the quantitative relevance of the risk-premium channel of uncertainty shocks. A historical contribution exercise suggests that the GFC is best characterised by a combination of uncertainty and risk aversion shocks, while uncertainty shocks were more important than risk aversion shocks during the COVID pandemic.

Keywords: Volatility; Uncertainty; Risk aversion; Shock-restricted SVAR; Set identification (search for similar items in EconPapers)
JEL-codes: D80 E32 E44 G1 (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:eecrev:v:154:y:2023:i:c:s0014292123000715

DOI: 10.1016/j.euroecorev.2023.104442

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