an amount of something left over when requirements have been met; an excess of production or supply over demand
Economic surplus is made up of two different related quantities: consumer surplus and producer surplus. Consumer surplus is the monetary gain obtained by consumers because they are able to purchase a product for a price that is less than the highest price they would be willing to pay. Producer surplus is the amount that producers benefit by selling at a market price that is higher than the least that they would be willing to sell for. There are many different examples of surplus such as: a surplus of workers, or clothing surplus.