Why does an economist create a market demand curve?

to show how various conditions can change the demand for a good

to predict how people will change their buying habits when prices change

to learn what demands the market will make under unusual conditions

to have an idea of how a market would change if conditions in an area changed

1 answer

An economist creates a market demand curve primarily to predict how people will change their buying habits when prices change. The demand curve illustrates the relationship between the price of a good and the quantity demanded by consumers, allowing economists to analyze how demand varies with price changes and to predict consumer behavior under different pricing scenarios.