The corporate regulator for all banks has told all banks to hold more of what the industry calls Tier 1 capital - they're funds in the event of an economic downturn.

Treasurer Scott Morrison concedes Australia faces economic challenges if the cash rate is cut again. (AAP) Source: AAP
The corporate regulator for all banks has told all banks to hold more of what the industry calls Tier 1 capital - they're funds in the event of an economic downturn.