It will suggest incorporating a leverage ratio into bank-capital requirements, to supplement the existing risk-weighting of assets.

For example, all loans to companies were assigned a weighting of 100%, but loans to Banks in rich Western countries had a risk weighting of just 20%.

They hit capital in another way, too, because junk-rated debt carries a punitive risk weighting; Banks must set aside five times as much capital as they have to for top-notch securities.