capital requirements – including a floor for model - based rwa – and leverage ratio requirements should complement each other. risk - weighted requirements should guide economic decisions at the margin, while the leverage ratio should serve as a backstop. yet, until the measures to resolve the rwa problem take effect, it is prudent to give a greater weighting to the leverage ratio when assessing the big banks ’ resilience. indeed, analysts increasingly pay attention to the leverage ratio when assessing and comparing banks. domestically focused commercial banks increased mortgage exposure, capital situation stable i would now like to turn to the domestically focused commercial banks. in 2014, these banks further increased their exposure to the swiss mortgage and residential real estate markets. while the share of new loans with high loan - to - income ratios – a measure of affordability risk – remained persistently high, mortgage lending growth and the share of new mortgage loans with a high loan - to - value ratio decreased. hence, the increase in exposure was lower than in previous years. with respect to bank capitalisation, the situation remained largely unchanged in 2014. first, the domestically focused commercial banks ’ leverage ratios remained stable at high levels by historical standards. second, these banks ’ risk - weighted capital ratios increased slightly and are significantly above regulatory minimum requirements overall. furthermore, stress test results suggest that most domestically focused banks should be able to absorb estimated losses without seeing their capitalisation fall below the regulatory minimum. nevertheless, under the most relevant adverse scenarios for these banks, the losses would deplete a large proportion of their surplus capital. experience in switzerland in the 1990s, as in other countries, suggests that this would lead to a general weakening of the banking sector and significantly affect banks ’ ability to lend, with negative and lasting repercussions for the real economy. the stress test results highlight the importance of banks holding significant capital surpluses relative to the regulatory minimum requirements. the activation of the countercyclical capital buffer in 2013 and its increase in 2014 has made a significant contribution in this respect. bis central bankers ’ speeches risk of renewed increase in imbalances on mortgage and real estate markets overall, imbalances on the mortgage and residential real estate markets have remained broadly unchanged since the last financial stability report. from a financial stability perspective, this is a positive development. however, it is still too early to give the all - clear. on the one hand, imbalances remain at a high level and have not yet started to decline. on the

jean - pierre danthine : presentation of the swiss national bank ’ s financial stability report introductory remarks by mr jean - pierre danthine, vice chairman of the governing board of the swiss national bank, at the media news conference of the swiss national bank, berne, 18 june 2015. * * * as my colleague thomas jordan has explained, global economic growth in the first quarter of 2015 was below expectations. however, over the last 12 months, we have seen an improvement in international economic and financial conditions, although substantial risks remain. the domestic environment has become more challenging due to the strong appreciation of the swiss franc that followed the discontinuation of the minimum exchange rate in january 2015. against this background, i would like to examine the situation at swiss banks from a financial stability perspective, looking first at the big banks and then moving on to a discussion of domestically focused banks. a more detailed assessment of the situation can be found in the latest financial stability report published today. big banks further improving resilience over the past year, the swiss big banks have continued to improve their capital situation, albeit at a slower pace than the year before. they already meet most of the requirements which will apply from 2019. while acknowledging the progress made, the snb recommends that the big banks do not lose momentum in their efforts to improve their resilience. this is particularly warranted with regard to the leverage ratio. resilience needs to be further improved for three reasons : first, the big banks ’ loss potential relative to their capitalisation continues to be substantial. second, while the swiss big banks ’ risk - weighted capital ratios are above the average for large globally active banks, the same cannot yet be said for their leverage ratios. third, it can be expected that regulatory developments at both international and national level will result in increased capital requirements. 1 the swiss big banks should prepare for these developments. rwa problem identified, but not yet resolved in the capital regulation of banks, risk - weighted assets ( rwa ) play a key role. as mentioned in previous financial stability reports, both markets ’ and authorities ’ confidence in rwa calculated using banks ’ internal models has steadily declined. a number of studies have shown that, in some instances, model - based rwa do not properly reflect a bank ’ s economic risks. 2 as a consequence, capital ratios calculated using model - based rwa may overstate the true level of resilience. based on the review of the swiss “