The presence of pollution in the dry cleaning industry leads in the long run to dynamic inefficiencies because
A) people will buy fewer clothes that need dry cleaning than they otherwise would have.
B) people will develop substitutes for dry cleaning that are wasteful.
C) firms will be induced to leave the industry because of artificially high costs.
D) firms whose average private cost is less than price will stay in (or enter) the dry cleaning industry even though their average social cost exceeds price.
E) firms whose average private cost exceeds the price will exit (or fail to enter) the dry cleaning industry even though their average social cost is less than price.
Question 2
For a market with a linear demand curve and constant marginal cost of production, why are the reaction functions for the Cournot duopoly sellers also straight lines?
A) The reaction functions do not have to be straight lines, and they are only drawn this way in the book to keep the figures simple.
B) Cournot thought the lines would be straight, but this was proven wrong by other economists.
C) Marginal revenue is always linear when marginal costs are constant.
D) We know that the marginal revenue curves for linear demand curves are also straight lines.
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