Using the data from the table for each of the prices, explain the long$-$run incentives for each representative firm in the industry. Also, explain what should happen to the size of the industry as a whole.

When $\backslash ($ P$^\{*\}=30\backslash )$ in the long run, existing firms have an incentive to and some firms will the industry.

Thus, the size of the industry will $1.$

When $\backslash ($ P$^\{*\}=25\backslash )$ in the long run, existing firms have an incentive to and some firms will the industry.

Thus, the size of the industry will When $\backslash ($ P $*=15\backslash )$ in the long run, existing firms have an incentive to and some firms will the industry.

Thus, the size of the industry will $1.$