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  • Defining and Calculating Price Elasticity of Demand

Purpose of the Negative Sign in the Price Elasticity of Demand Formula

Due to the law of demand, an increase in price results in a decrease in quantity demanded, making the ratio of their percentage changes inherently negative. The standard formula for price elasticity of demand includes a leading negative sign by convention. This sign serves to convert the negative ratio into a positive number, which simplifies the interpretation of elasticity as a measure of responsiveness.

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Economics

Economy

Introduction to Microeconomics Course

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