It starts in the farm fields,and works it's way up the food chain to the retailers. Nobody can afford to pay 20 bucks an hour for field laborers,canners,packers,loaders,stock boys,and then cashiers,so the supply is going to be less and less with each month that passes.
Sooner or later,even the big chains will either close or have reduced hours. Which will further reduce the stock on hand and raise the prices.
It is an economic death spin.