(Q2 Q1 )/[(Q2 + Q1 )/2] Price Elasticity of Dem and = (P2 P )/[(P2 + P )/2] 1 1
Computing the Price Elasticity of Demand Using the Midpoint Formula
Example: If the price of an ice cream cone increases from $2.00 to $2.20 and the amount you buy falls from 10 to 8 cones the your elasticity of demand, using the midpoint formula, would be calculated as:
Elastic demands
– – – – – Purchased meals Metals Furnitures, timber Motor, Vehicles Transportation 2.27 1.52 1.25 1.14 1.03
Inelastic demands
– 如果你是博物馆的馆长,你的财务经理建议你涨价提高 收入,你会怎么办?
If you are a manager of a cinema, then what will you do in the same situation?
– 如果你是电影院的经理,同样的情况下你会怎么办?
Some Price Elasticities in the U.S. Economy
– 对于富有弹性的需求曲线,价格上涨导致需求 量的减少比例更大,这样总收入下降.
Elasticity and Total Revenue: Elastic Demand