In presenting the idea of a demand curve, economists presume the most important variable in determining the quantity demanded is; The price of the product itself.
Demand curve can be defined as the curve that help to display or show the relationship that occur between price of product and the quantity demand at a particular period of time.
The price of the product itself can be considered or presume the most important variable in determining the quantity demanded based on the fact that price of goods and service help to determine the quantity that will be demanded.
Therefore In presenting the idea of a demand curve, economists presume the most important variable in determining the quantity demanded is; The price of the product itself.
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