what is quantity supplied?

Quantity supplied is the amount of a good or service that producers and suppliers are willing and able to produce and sell at a specific price within a given time period. It varies with price — typically, the higher the price, the greater the quantity supplied, because higher prices generally increase producers' potential profits. Quantity supplied is a specific point on the supply curve and should not be confused with the overall supply, which represents quantities supplied at various price levels. Changes in quantity supplied result from changes in the price of the good or service, assuming all other factors remain constant.