Discussion paper

DP17062 Risk-Taking, Competition and Uncertainty: Do Contingent Convertible (CoCo) Bonds Increase the Risk Appetite of Banks?

We assess the impact of contingent convertible (CoCo) bonds and the wealth transfers they imply conditional on conversion on the risk-taking behaviour of the issuing bank. We also test for regulatory arbitrage: do banks by issuing CoCo bonds try to maintain risk-taking incentives when regulators reduce them through higher capitalization ratios? While we test for and reject sample selection bias, we show that CoCo bonds issuance has a strong positive effect on risk-taking behaviour, and so do conversion parameters that reduce dilution of existing shareholders upon conversion. Higher volatility amplifies the impact of CoCo bonds on risk-taking.

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Citation

van Wijnbergen, S, I Neamtu and M Fatou (eds) (2022), “DP17062 Risk-Taking, Competition and Uncertainty: Do Contingent Convertible (CoCo) Bonds Increase the Risk Appetite of Banks?”, CEPR Press Discussion Paper No. 17062. https://new.cepr.org/publications/dp17062