Empty shelves aren't down to selfish-stockpiling:

Kantar data shows that 3% of people are stockpiling selfishly (ie buying a lot more than normal) but lots of people are buying just a little more

Via @WARCEditors https://t.co/2m9hWSuotD pic.twitter.com/z0TBFiCkBr

— richard shotton (@rshotton) March 26, 2020