The Adverse Effect of Contingent Convertible Bonds on Bank Stability
This paper examines the effect of CoCo bonds that qualify as additional tier 1 capital on bank fundamentals. The results reveal a significant reduction in the distance to insolvency following the hybrid bond issuance due to increased earnings volatility. Further analyses suggest a link between CoCo issuance and more active earnings management, evidenced by a higher standard deviation of loan loss provisions and impairment charges. The findings substantiate long-standing theoretical hypotheses suggesting that the regulatory design requirements for going-concern CoCos adversely affect bank stability. Furthermore, they correspond to the notion that private monitoring is largely absent as a corrective measure due to prevailing uncertainties and information frictions.
