Price Elasticity of Supply Calculator
Calculate price elasticity of supply: how quantity supplied changes with price changes. Formula: (% change in quantity supplied) ÷ (% change in price). Elasticity > 1 = elastic (supply sensitive to price), Elasticity < 1 = inelastic (supply insensitive to price).
Formula
PES = (% change in quantity supplied) ÷ (% change in price)
- % Change in Quantity Supplied = ((S2 - S1) / S1) × 100
- % Change in Price = ((P2 - P1) / P1) × 100
- Elasticity > 1: Elastic (supply changes more than price)
- Elasticity = 1: Unit Elastic (supply changes proportionally with price)
- Elasticity < 1: Inelastic (supply changes less than price)
- Usually positive (higher price → higher quantity supplied)
- Used in production planning and resource allocation
Example
Inputs
- Initial Quantity Supplied: 100
- New Quantity Supplied: 120
- Initial Price: 10
- New Price: 12
Initial supply: 100 units at price $10. New supply: 120 units at price $12. Quantity change: +20%, Price change: +20%, Elasticity: 1.0 (unit elastic). A 1% price increase leads to 1% quantity supplied increase.
Frequently asked questions
What's the difference between supply elasticity and demand elasticity?
Both measure price sensitivity. Supply elasticity shows how producers respond; demand elasticity shows how consumers respond.
Why is supply elasticity usually positive?
When price rises, suppliers want to produce more (unlike demand, where higher prices reduce quantity desired).
What does elastic vs inelastic supply mean?
Elastic: |E| > 1 (suppliers can quickly increase production). Inelastic: |E| < 1 (production changes take time).
When should I use this?
Use when planning production expansion, analyzing industry capacity constraints, or pricing inventory.
What are typical elasticity values?
Agricultural products: 0.2 to 0.8 (inelastic - long growing cycles). Manufactured goods: 1.0 to 2.0 (more elastic - flexible production).