The researchers based their comparison on two benchmark methodologies; the approach taken by the European Banking Authority (EBA) in stress tests conducted in 2014, and the approach used by the US Federal Reserve (Fed) in the stress test conducted in the US banking sector in 2016 (CCAR 2016). Building on assumptions made in the EBA and Fed stress tests, researchers used a third, market-based approach, which assumed a global stock market decline of 40 per cent over six months. As in the EBA stress test conducted in 2016, the study considered 51 European banks, 34 of which are publicly listed.
German and French banks have the largest capital shortfalls
Under the EBA methodology, the capital shortfalls of all 51 banks totalled 5.6 billion euros. The CCAR 2016 approach resulted in total capital shortfalls of 123 billion euros for all 51 banks. The banks with the largest capital shortfalls are the Deutsche Bank (19 billion euros), and the French banks, Société Générale (13 billion euros) and BNP Paribas (10 billion euros).
If the 34 publicly listed banks are considered, the differences between measured capital shortfalls are even more stark. Capital shortfalls of the publicly listed banks in the market-based approach totalled 675 billion euros, whilst the Fed stress test revealed shortfalls of 92 billion euros. The banks with the largest capital shortfalls were the French banks, Crédit Agricole (79 billion euros) and BNP Paribas (75 billion euros), and the Deutsche Bank (60 billion euros).
The loss potential depends on the stress level to which banks are subject
"The main objective of the recent EBA stress test was to achieve transparency in regard to bank capital adequacy in stress scenarios, not to reveal capital shortfalls that need to be taken care of immediately," explains Professor Sascha Steffen, head of the ZEW Research Department "International Finance and Financial Management" and co-author of the study. "Our comparison also explains the differences between the market-based approach and CCAR 2016: the prudential capital ratio used as a threshold, the severity of the stress scenario and differences in market-to-book ratios across banks."
According to Sascha Steffen, the deficiencies revealed by the combined stress scenarios could be overcome. "The USA have drawn their own conclusions and implemented comprehensive measures for the recapitalisation of the American banking sector as early as in 2008. A lack of political will means that this has still not happened in Europe."
Download the study at: www.sascha-steffen.de
For more information please contact