WAEC - Economics (2017 - No. 11)
Effective supply is the total amount of a commodity
from a single producer
in the warehouse of producers
offered for sale at a market place
produced for the market
توضیح
In economics, effective demand (ED) in a market is the demand for a product or service which occurs when purchasers are constrained in a different market. it is the Quantity of a good or service that consumers are actually buying at the current market price.