Investor ambiguity, systemic banking risk and economic activity: The case of too-big-to-fail

TY - JOUR

T1 - Investor ambiguity, systemic banking risk and economic activity

T2 - The case of too-big-to-fail

AU - Driouchi, Tarik

AU - So, Raymond H Y

AU - Trigeorgis, Lenos

PY - 2020/6

Y1 - 2020/6

N2 - This paper examines the relationship between investors’ ambiguity in the financial options market and systemic banks’ risk. Eliciting ambiguity information from option pricing data on the twelve major U.S. banks between 2003 and 2010, we show that higher behavioral deviations from risk-neutral and Bayesian valuation (i.e., investor ambiguity) are associated with higher systemic banks’ downside, market and credit risks. Consistent with behavioral explanations, we confirm the detrimental effect of ambiguity on financial market outcomes and find strong evidence of ambiguity among call and put option holders. Variance decomposition indicates that such a pattern of behavior explains a significant proportion of U.S. banking risk variance. This effect is more pronounced during periods of economic turbulence and bank stress (i.e., the 2007-2009 crisis), and holds after controlling for size, tail risk, implied volatility, and volatility of volatility dynamics. We also document that ambiguity from the financial market has a depressing impact on real economic activity, including capacity utilization, non-farm payrolls and overall economic performance. Our findings are robust to alternative specifications of ambiguity such as multiple priors and expected utilities with uncertain probabilities.

AB - This paper examines the relationship between investors’ ambiguity in the financial options market and systemic banks’ risk. Eliciting ambiguity information from option pricing data on the twelve major U.S. banks between 2003 and 2010, we show that higher behavioral deviations from risk-neutral and Bayesian valuation (i.e., investor ambiguity) are associated with higher systemic banks’ downside, market and credit risks. Consistent with behavioral explanations, we confirm the detrimental effect of ambiguity on financial market outcomes and find strong evidence of ambiguity among call and put option holders. Variance decomposition indicates that such a pattern of behavior explains a significant proportion of U.S. banking risk variance. This effect is more pronounced during periods of economic turbulence and bank stress (i.e., the 2007-2009 crisis), and holds after controlling for size, tail risk, implied volatility, and volatility of volatility dynamics. We also document that ambiguity from the financial market has a depressing impact on real economic activity, including capacity utilization, non-farm payrolls and overall economic performance. Our findings are robust to alternative specifications of ambiguity such as multiple priors and expected utilities with uncertain probabilities.

U2 - 10.1016/j.jcorpfin.2019.101549

DO - 10.1016/j.jcorpfin.2019.101549

M3 - Article

SN - 0929-1199

VL - 62

JO - Journal of Corporate Finance

JF - Journal of Corporate Finance

M1 - 101549

ER -