The market for carbon allowances is set by the regulatory authority.

Mr. White was the third and final owner of the talisman in W. W. Jacobs' short story "The Monkey's Paw." He plucked it from the fireplace when the previous owner, Sergeant Major Morris, tossed it there to burn and end the chain of misfortune that came with it. He is motivated mostly by curiosity, since he seems happy with his life and is financially secure.
Mr. White took the paw from his pocket and eyed it dubiously. "I don't know what to wish for, and that's a fact," he said slowly. "It seems to me I've got all I want."
<h2>Hope it helps!! </h2>
A pure-monoply means that a company does not have to compete with other producers within the market. Since they aren't competing with a good or service, they aren't competing with each others customers either. When a company does not have to compete on price/customers they may end up being greedy and have market failure.
This is false because consumer surplus declines because of the increase in price and reduction in quantity.