Final answer:
A quota on imported avocados raises prices, decreases consumer surplus, increases producer surplus, creates tariff revenue, but causes a net societal loss due to consumer losses outweighing producer and government gains.
Step-by-step explanation:
A quota on imported avocados increases the price of avocados, decreases consumers' surplus for avocado buyers, increases producers' surplus of avocado growers, and creates tariff revenue. Because the loss to consumers is more than the gain to producers and government through tariff revenue, there is a net loss to society.
The imposition of a tariff or quota results in two primary outcomes: consumers end up paying a higher price and purchasing smaller quantities, whereas domestic producers receive higher prices and sell larger quantities. These effects lead to a redistribution of economic welfare - consumers end up worse off while producers and the government can potentially be better off. However, the overall loss in consumer surplus often outweighs the gains in producer surplus and government revenue, leading to a decrease in social surplus or the overall economic welfare of society.