Specifically, there may be a need for new macroprudential instruments, such as comprehensive authority to impose margins on all cash-like instruments, regardless of whether a firm creating those instruments is a regulated entity such as a bank holding company.
Some assumptions are generally more important than others, and some may be of greater interest at different times, depending on the extent of their current and expected movements. For example, the oil price assumptions would be of greater interest at times when real oil price trends change direction, such as recently experienced.