difference between demand and effective demand
Effective demand is the term economists use to refer to the actual demand that exists in a market. In other words, effective demand exists when a buyer has both the desire and the ability to buy a product. So the effective demand for sports cars might be measured by the actual number of sports cars sold at a certain price during a particular period.
Markets are made up of sellers and buyers. Sellers have a supply of goods, and buyers have a supply of money. If the price is right, a seller and a buyer agree to make a trade. The amount of buyer interest that exists at a specific price level is called the demand.