I’m doing an essay regarding the applicability of Basel II in European banks. I’ve read most of the BIS stuff about the subject, and I would like to make an empirical analysis on some of the banks. Regarding operational risk, what risk ratios I should use to assess banks risk (since I only have accounting data)? I thought I could use the volatility of the Operational Cash-Flows to assess the banks operational risk. It looks like a reasonable variable, but I think it lacks of information, given the purposes of Basel II. The basic accounting data are rather scarce, but it’s all I’ve got!!!. I’m totally open to suggestions. Thanks in advanced.

If they are disclosing broken down economic capital numbers, that might help. You could also try making some contacts through this or other such forums (fora?).