alleryStart learning →A private good like a slice of pizza differs from a public good because it is:
ANon-rival and excludable
BRival and nonexcludable
CNon-rival, nonexcludable
DRival and excludable
Answer & Solution
Correct answer: D. Rival and excludable
1. The two defining characteristics of a public good give the contrast directly.
2. Public goods have two defining characteristics: they are nonexcludable and non-rival.
3. An ordinary private good, like a piece of pizza, has the opposite pair.
4. Eating the slice uses it up, and the seller can withhold it from non-payers.
_Source: OpenStax Principles of Microeconomics for AP(R) Courses 2e (CC BY 4.0), Ch 13 'Positive Externalities and Public Goods', sections 13.1-13.4_
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