Firms Supplying Twisty-Ties Decrease the Quantity Supplied of Inputs by 10

Multiple Choice

Firms supplying twisty-ties decrease the quantity supplied of inputs by 10% when the price decreases by 5%. The price elasticity of supply for twisty-ties is:

A) 4.0.
B) 0.4.
C) 2.0.
D) 0.2.
E) 1.0.