European regulators introduced Basel III regulations for banks. It increased capital ratios, limits on leverage, narrow definition of capital (to exclude subordinated debt), limit counter-party risk, and new liquidity requirements. Critics argue that Basel III doesn’t address the problem of faulty risk-weightings. Major banks suffered losses from AAA-rated created by financial engineering (which creates apparently risk-free assets out of high risk collateral) that required less capital according to Basel II. Lending to AA-rated sovereigns has a risk-weight of zero, thus increasing lending to governments and leading to the next crisis. Johan Norberg argues that regulations (Basel III among others) have indeed led to excessive lending to risky governments (see European sovereign-debt crisis) and the ECB pursues even more lending as the solution.

What did European regulators introduce to increase the oversight of banks?