Monday, June 19, 2017

Compact Glossary of Elasticities of Demand price elasticity, income elasticity, cross elasticity

Compact Glossary of Elasticities of Demand
PRICE
ELASTICITIES
A relationship is described as
Perfectly elastic or infinitely elastic


When the elasticity value is
Infinity
Which means that
The smallest possible increase (decrease) in price causes an infinitely large decrease (increase) in the quantity demanded.
Elastic
Less than infinity but greater than 1
The percentage decrease (increase) in the quantity demanded exceeds the percentage increase (decrease) in price.
Unit elastic
1
The percentage decrease (increase) in the quantity demanded
Inelastic
Greater than zero but less than 1
The percentage decrease (increase) in the quantity demanded is less than the percentage increase (decrease) in price.
Perfectly inelastic or completely inelastic
Zero
The quantity demanded is the same at all prices.
CROSS ELASTICITIES
A relationship is described as
Perfect substitutes
When he elasticity value is
Infinity
Which means that
The smallest possible increase (decrease) in the price of one good causes an infinitely large increase (decrease) in the quantity demanded of the other good.
Substitutes
Positive, less than infinity
If the price of one good increases (decreases) the quantity demanded of the other good also increases (decreases).
Independent
Zero
The quantity demanded of one good remains constant regardless of the price of the other good.
Complements
Less than zero
The quantity demanded of one good decreases (increases) when the price of the other good increases (decreases).
INCOME ELASTICITIES
A relationship is described as Income elastic (normal good)
When the elasticity value is Greater than 1
Which means that
The percentage increase (decrease) in the quantity demanded is greater than the percentage (decrease) in income.
Income inelastic (normal good)
Less than 1 but greater than zero
The percentage increase (decrease) in the quantity demanded is less than the percentage increase (decrease) in income.
Negative income elastic (inferior good)
Less than zero
When income increases (decreases) quantity demanded decreases (increases).

No comments:

Post a Comment

TYPES OF MICRO ECONOMICS

     The analysis of microeconomics is always affected by time period. But there are still some economists who do not believe the time value...