Find the Smallest Possible Set (That Is, the Set with the Least

question 24

Essay

Find the smallest possible set (that is, the set with the least number of elements) that contains the given sets as subsets.
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Definitions:

Marginal Social Benefit

The additional benefit to society from consuming one more unit of a good or service, considering both private and external benefits.

Marginal Social Cost

The additional cost to society as a whole for producing one more unit of a good or service.

Public Good

A product or service that is available for all people to consume, regardless of whether any individual pays for it or not, typically provided by the government.

Common Resource

A natural or man-made resource that is non-excludable and rivalrous, such as fish in the ocean or a public park, which can lead to overuse and depletion.