During the financial crisis of 2008, the greatest problem were insolvent banks. Owing to more intensive regulation at the international level, banks were strengthened in such way that in the recent crisis they could be a part of the solution and contribute to economic recovery.
Even applying significant discounts to stated investment intentions, as the Reserve Bank staff have done in their forecasts, there is likely to be a further significant rise in business investment over the next few years, from a level that is already reasonably high as a share of GDP.