Introduction to Economics 1 Deneme Sınavı Sorusu #1256872

If a demand curve is horizontal, which of the following statement is correct about its slope and its price elasticity?


If the demand curve is horizontal, its slope and its price elasticity would be infinite,

If the demand curve is horizontal, its slope is zero but its price elasticity is infinite,

If the demand curve is horizontal, its slope and its price elasticity is zero,

If the demand curve is horizontal, its slope and its price elasticity is equal to one,

If the demand curve is horizontal, its slope infinite but its price elasticity is zero.


Yanıt Açıklaması:

Shape of Demand Curves and Elasticity

The price elasticity of demand is closely related to the slope of the demand curve but the slope of a demand curve is different from its price elasticity of demand. However, there are exceptions in which the price elasticity of demand can be understood by looking at the slope of the demand curve. These cases are: (i) when price and quantity are identical, by looking at the slopes of the two intersecting demand curves it can be said which one is more elastic than the other. (ii) If the demand curve is vertical, its slope and its price elasticity is zero, and (iii) If the demand curve is horizontal, its slope and the price elasticity would be infinite.

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