RT Report T1 Systemic banks, capital composition and CoCo bonds issuance: The effects on bank risk A1 Echevarría Icaza, Victor A1 Sosvilla Rivero, Simón Javier AB This paper shows that systemic banks are prone to increase their regulatory capital ratio through a decline in risk-weighted assets density and an intense use of lower level capital. The market access of systemic banks, and the fact that they were singled out for higher capital requirements seem to have biased them towards lower level capital, consistent with the theory that asymmetric information drives capital decisions. These effects are particularly strong for institutions that had a rather low level of capitalization at the start of the period and for those that exhibited a strong use of Additional Tier I capital before the regulatory changes. Strict capital composition requirements for firms with lower buffers would be an improvement. PB Instituto Complutense de Estudios Internacionales (ICEI) SN 2530-0849 YR 2017 FD 2017 LK https://hdl.handle.net/20.500.14352/22900 UL https://hdl.handle.net/20.500.14352/22900 LA eng NO Banco de España through grant from Programa de Ayudas a la Investigación 2016–2017 en Macroeconomía, Economía Monetaria, Financiera y Bancaria e Historia Económica NO Spanish Ministry of Education, Culture and Sport [grant PRX16/00261] NO Spanish Ministry of Economy and Competitiveness [grant ECO2016-76203-C2-2-P] DS Docta Complutense RD 19 dic 2025