At a price of $4 per unit, Gadgets Inc. is willing to supply 20,000 gadgets, while United Gadgets is willing to supply 10,000 gadgets. If the price were to rise to $8 per unit, their respective quantities supplied would rise to 45,000 and 25,000. If these are the only two firms supplying gadgets,

what is the elasticity of supply in the market for gadgets?

a.) 1.2

b.).80

c.).833

d.) 1.0

Option (a) is correct.

Explanation:

Average of quantity supplied:

= (70,000 + 30,000) : 2

= 50,000

Percentage change in quantity supplied:

= (70,000 - 30,000) : 50,000

= 0.8

Average of price change:

= (8 + 4) : 2

= 6

Percentage change in price:

= (8 - 4) : 6

= 0.667

Therefore,

Elasticity of supply in the market for gadgets:

= Percentage change in quantity supplied : Percentage change in price

= 0.8 : 0.667

= 1.2