As a result, the Danish rules were amended so that the required solvency ratio for banks was calculated as a percentage of risk-weighted assets. Until then, the solvency ratio had been calculated relative to total debt and guarantee exposures. The view on solvency was changed from a buffer against a run on the bank to a cushion related to the quality of the loans.
This amendment was part of the introduction of BIS solvency rules in the EC. The aim was to improve the solvency of the global banking system. But the aim was also to ensure that the banks competed under more equal conditions. These rules were known as Basel I.