The European Central Bank has published a working paper finding that euro area banks facing more fragmented capital buffer frameworks hold additional capital headroom and expand corporate lending more slowly. A one standard deviation increase in fragmentation is associated with 26 to 36 basis points of additional capital headroom and a 0.5 to 0.9 percentage point reduction in lending growth within existing bank-firm relationships. The lending effect is strongest for banks with limited capital headroom. The authors construct a bank-level index covering the number of simultaneously active buffers, the frequency of buffer increases and the geographical dispersion of requirements. After controlling for capital requirement levels, bank size and the financial cycle, the results suggest banks retain precautionary capital and lend more cautiously when future buffer adjustments are less predictable. The paper notes that fragmentation can help authorities target specific risks, but finds that frequent revisions and multiple overlapping instruments may unintentionally constrain credit supply.
2026-09-21European Central Bank
European Central Bank publishes working paper linking macroprudential fragmentation to weaker corporate lending
A European Central Bank working paper links fragmented capital buffer frameworks to higher capital headroom and weaker corporate lending growth. A one standard deviation increase in fragmentation is associated with 26 to 36 basis points of additional headroom and 0.5 to 0.9 percentage point lower lending growth, with the strongest effect among banks holding little spare capital.