2022-05-17
The Financial Policy Committee reviewed empirical studies to estimate the macroeconomic costs and benefits of higher bank capital requirements. The analysis indicates that while increased capital raises lending rates by 5-8 basis points per percentage point, the resulting steady-state GDP impact is modest at 0.01% to 0.05%. Cost-benefit frameworks suggest optimal CET1 ratios between 10% and 20%, with alternative methods indicating 15-23% would have prevented creditor losses in most historical crises.