Determinants of Elasticity - Definition of the Market • Availability of close Substitutes • Proportion
of expenditure • Necessities versus Luxuries • Addictiveness • Time Horizon
Mid Point method - so that elasticity remains the same
irrespective of direction of movement along supply
surve
Perfecty Inelastic E = 0
Highly Inelastic E< 1
Highly Elastic E>1
Income Elasticity of Demand = ( % change in Quant) /
(% change in Price)
Cross Elasticity = ( % change in demand of quat A) / (% change in demand of quant B)
Substitutes - E > 0
Compliments - E < 0
Shifts Caused By- Income, Substitutes available, Preference, Expectations, Number of
Buyers
Income Rises - D for Normal good rises
I Rises - D for Inferior good goes down
Related Goods
Substitutes
Compliments
Supply Curve
Upward Sloping
Shifts Caused by - Input Prices, Technology, Expectations, Number of sellers, Govt policy
Supply Elasticity = (% Change in Quantity)/ (% Change in Price)