Definition and formula
PED measures how responsive quantity demanded is to price change. Use percentage change values and keep interpretation consistent.
Price Elasticity of Demand (PED) for A-Level Economics
Understand PED calculations, interpretation ranges, and how to apply elasticity to exam judgement and policy evaluation.
Practice this now in NovaLearnHow to interpret PED values
Explain whether demand is elastic, inelastic, or unit elastic, then connect it to revenue and pricing implications.
Common exam mistakes
Avoid sign confusion, movement-vs-shift mistakes, and unsupported claims about substitutes or necessity.
Related pages
FAQs
Why is PED often shown as a negative value?
Price and quantity demanded usually move in opposite directions, so PED is negative by convention.
How can I improve PED exam answers?
Combine accurate calculation with context-based interpretation and clear evaluation of business or policy consequences.