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Chapter 6

Elasticity and its Implications

Book Version 3
By Boundless
Boundless Economics
Economics
by Boundless
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Section 1
Price Elasticity of Demand
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Defining Price Elasticity of Demand

The price elasticity of demand (PED) measures the change in demand for a good in response to a change in price.

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Measuring the Price Elasticity of Demand

The price elasticity of demand (PED) is calculated by dividing the percentage change in quantity demanded by the percentage change in price.

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Interpretations of Price Elasticity of Demand

The price elasticity of demand (PED) explains how much changes in price affect changes in quantity demanded.

Determinants of Price Elasticity of Demand

A good's price elasticity of demand is largely determined by the availability of substitute goods.

Section 2
Other Demand Elasticities
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Cross-Price Elasticity of Demand

The cross-price elasticity of demand measures the change in demand for one good in response to a change in price of another good.

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Income Elasticity of Demand

The income elasticity of demand measures the responsiveness of the demand for a good or service to a change in income.

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Calculating Elasticities

The basic elasticity formula has shortcomings which can be minimized by using the midpoint method or calculating the point elasticity.

Section 3
Price Elasticity of Supply
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Definition of Price Elasticity of Supply

The price elasticity of supply is the measure of the responsiveness in quantity supplied to a change in price for a specific good.

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Measuring the Price Elasticity of Supply

The price elasticity of supply is the measure of the responsiveness of the quantity supplied of a particular good to a change in price.

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Applications of Elasticities

In economics, elasticity refers to how the supply and demand of a product changes in relation to a change in the price.

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Consumer Choice and Utility
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Elasticity and its Implications
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Market Failure: Externalities
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