Logistics – Are we running out of things?
demand is a need for goods to be sold or supplied.
supply is a stock of goods available for use.
shortage is a situation when there’s a lack of something you need.
excess is when there is more of something than you need.
spike is a sudden and considerable increase.
surge is a sudden and considerable increase.
stock means available goods, supplies.
warehouse is a place to store goods, supplies.