Exhibit 8-18 Assuming All of the Firms Are Identical

Exhibit 8-18 Assuming all of the firms are identical, how many firms are in the industry before and after the demand shift depicted in Exhibit 8-18?

A) Fifty firms are in the industry before and after the demand shift.
B) Forty firms are in the industry before the demand shift; after the shift, the amount can't be determined.
C) Fifty firms are in the industry after the demand shift; before the shift, the amount can't be determined.
D) The number of individual firms cannot be determined from the information given.
E) The exact number of individual firms can't be determined, but more are in the industry after the demand shift than before it.