Uncertainty and Growth Disasters

Working Paper: NBER ID: w28024

Authors: Boyan Jovanovic; Sai Ma

Abstract: This paper documents several facts on the real effects of economic uncertainty. First, higher uncertainty is associated with a more dispersed distribution of output growth. Second, the relation is highly asymmetric: A rise in uncertainty is associated with a sharp decline in the lower tail of the growth distribution whereas it has a much smaller and insignificant impact on its upper tail. Third, the negative response of growth to uncertainty shocks is larger when the equity market is more volatile. We build a model in which growth and uncertainty are both endogenous: rapid adoption of new technology raises economic uncertainty and may cause measured productivity to decline. The equilibrium growth distribution is negatively skewed and higher uncertainty leads to a thicker left tail and to more labor reallocation among jobs and among

Keywords: uncertainty; growth; economic fluctuations; quantile regression

JEL Codes: E3


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
Higher economic uncertainty (D89)More dispersed and negatively skewed growth distribution (D39)
One-standard-deviation increase in uncertainty (D89)Increase in interquartile range of one-month-ahead annualized growth distribution by 2% (D39)
One-standard-deviation increase in uncertainty (D89)Decrease in lower 5th percentile of growth distribution by 5% (F62)
Higher uncertainty (D89)Larger decrease in lower tail of growth distribution (D39)
Higher asset market volatility (VIX) (G19)Amplifies negative impact of uncertainty on growth (D89)
One-standard-deviation increase in VIX (C58)Increase in marginal effect of uncertainty on lower 5th percentile of expected growth distribution by 10% (F62)

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