Regulation will be a key issue for the G20 group of developed and developing nations at a November meeting in Korea, and has led to the drafting of Basel III bank capital rules to bolster the foundation of the global banking system.
Meanwhile, ECB data showed that growth in euro zone private sector lending picked up in August but crucial lending to companies continued to fall, threatening to curb economic growth.
Overall credit expanded by 0.8% from the volume in July and by 1.2% on a 12-month comparison, the ECB said. But a breakdown of the figures revealed that although lending to households advanced by 2.9%, the number for non-financial companies was minus 1.1%, only slightly better than the reading in July of -1.4%.
The ECB also said that the money supply, as measured by the key indicator of so-called M3 money, expanded by 1.1% in August after growing by 0.2% in July.