The midpoint formula is used to measure the elasticity of demand between two points on a demand curve
A) when demand is elastic.
B) in special cases when the percentage change in the quantity demanded is equal to the percentage change in price.
C) to ensure that the elasticity has a negative value.
D) to ensure that we have only one value of the price elasticity of demand between two points on a demand curve.
Answer: D
Economics
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