price elasticity supply
Overview
This lesson explores Price Elasticity of Supply (PES), a crucial microeconomic concept that measures the responsiveness of the quantity supplied of a good or service to a change in its price. Understanding PES helps analyse how producers react to price signals and the implications for market equilibrium and government intervention.
1. Introduction to Price Elasticity of Supply (PES)
Price Elasticity of Supply (PES) quantifies the degree to which producers adjust the quantity of a good or service they offer for sale in response to a change in its market price. It is a vital concept for understanding market dynamics, particularly how firms react to price signals and the speed at ...
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Key Concepts
- Price Elasticity of Supply (PES): A measure of the responsiveness of quantity supplied to a change in price.
- Elastic Supply: PES > 1, meaning quantity supplied changes proportionally more than price.
- Inelastic Supply: PES < 1, meaning quantity supplied changes proportionally less than price.
- Unitary Elastic Supply: PES = 1, meaning quantity supplied changes proportionally the same as price.
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Exam Tips
- →Always state the formula for PES and show your calculations clearly, even if it's a simple percentage change. Remember to interpret the final PES value (elastic, inelastic, etc.).
- →When discussing determinants of PES, always link them back to the firm's ability to adjust production. The 'time horizon' is a critical determinant and often forms the basis of explanation.
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