# Elasticity of Demand - PowerPoint PPT Presentation

Elasticity of Demand

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Elasticity of Demand

## Elasticity of Demand

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##### Presentation Transcript

1. Elasticity of Demand Chapter 4 Section 3

2. Demand Elasticity • Demand Elasticity: the extent to which a change in P causes a change in the Q demanded 3 types • 1. Elastic = small change in P causes a large change in Q demanded • example = fresh fruit

3. 2. Inelastic = a change in P causes a smaller change or no change in Q demanded • Example: table salt or gasoline • 3. Unit = % change in P = % change in Q demanded

4. Total Expenditures Test • Multiply the price by the quantity

5. Specific vs. General Market Examples: • Specific: Exxon Gas Station • If P increases, people would go somewhere else, therefore it is elastic (flexible) • General: All Gas Stations • If P increases, people will have to pay the increase, therefore it is inelastic (nonflexible)

6. Determinants of Demand Elasticity • If 2 or more NO = usually inelastic • If 2 or more YES = usually elastic

7. Determinants of Elasticity