Most banks would pay a negative interest. If you have any sort of fortune, you need to invest to make any interest, otherwise you'd see that fortune become smal

Most banks would pay a negative interest. If you have any sort of fortune, you need to invest to make any interest, otherwise you'd see that fortune become smaller and smaller. Arguably some have found it beneficial to invest in bonds with negative yields, because then they'd at least know that their money was safe and exactly how much it would cost over a given period.