The last (upward) arrow in the chart does not make sense. Why would people buy more goods: as prices go up, they can buy less and less goods.
Abd what about toys when everyone is talking about saving Christmas ? You'll make triple sure you have one, maybe even buy several from several sources.
I've seen myself do that with difficult to import goods, and price is always a lower factor than need. Price would eventually push me out, but there s a twilight zone when it's just right to panic buy stuff that werent supposed to be rare.