Elasticity Flashcards
What is PED?
PED measures the responsiveness of demand to a change in price.
What is the formula for PED?
PED = % change in quantity demanded / % change in price
An inelastic good for PED means…..
…..quantity demanded is not significantly affected by a change in price.
An elastic good for PED means….
…..quantity demanded would be significantly affected by a change in price.
What is the numerical result for perfect inelasticity for PED
0
What is the numerical result for relative inelasticity for PED
0 to -0.99
What is the numerical result for unit elasticity for PED?
-1
What is the numerical result for relative elasticity for PED?
-1 to -∞
What is the numerical result for perfect elasticity for PED?
-∞
What are the determinants of PED?
HINTS
1. Habit Forming
2. Income% spent
3. Necessities
4. Time Frame
5. Substitutes
What is habit forming ?
If a certain product is addictive, the more inelastic demand for that product there would be.
What is income% spent?
The proportion of income % spent on a commodity, the greater the elasticity of demand for it and vice versa.
What is necessities?
If a certain product is a need, which means it is necessary for survival, then demand for it would most likely be inelastic.
What is timeframe?
If a certain product becomes more fashionable over a certain period of time, then demand would be inelastic as people would still buy the product anyway.
What is substitute?
If substitutes are available, the product’s demand tends to be elastic. If the price of the product increases, people would shift to its close substitutes which are at a lower price.