As an economic concept, scarcity applies to

Question

BlackTom AI · Accepted Answer

Scarcity means resources are limited relative to unlimited wants, so it applies to any limited resource people must allocate — including both money and time.

1. Relevant knowledge points and concepts
- Scarcity: the fundamental economic problem that resources (goods, time, money, labor, raw materials) are finite while human wants are virtually unlimited.
- Opportunity cost: choosing one use of a scarce resource means forgoing the next best alternative.
- Resources need not be physical goods; they include time and purchasing power (money), both of which must be allocated among competing uses.

2. Step-by-step reasoning
- Identify each item as a resource: money is a medium that lets you acquire goods/services; time is a nonrenewable resource (24 hours/day) used for work, leisure, learning, etc.
- Ask whether each is limited relative to desires. Money is limited for most individuals — you cannot buy everything you want. Time is limited because you cannot be in two places or do two activities at once.
- Because both are limited, people face trade-offs and must make choices about how to allocate them, which is the essence of scarcity.

3. Example with simple arithmetic (intermediate steps)
- Suppose a person has $100 and 24 hours. If they spend $30 on a concert, they have $70 left (100 − 30 = 70) and must forgo whatever else they could have bought with $30. If they spend 3 hours at the concert, they have 21 hours remaining (24 − 3 = 21) and forgo alternative uses of those 3 hours (work, study, etc.). Both money and time involve explicit opportunity costs.

4. Why the correct answer is correct
- Scarcity applies when a resource is limited and requires allocation; both money and time meet that definition. Economic analysis treats time as a scarce input just like money.

5. Why other options are incorrect
- a. "money but not time": incorrect because time is scarce and must be allocated among uses.
- b. "time but not money": incorrect because money is scarce for consumers and firms.
- c. "neither time nor money": incorrect because both clearly involve trade-offs and opportunity costs.

6. Conclusion
Therefore scarcity applies to both money and time; the correct choice is d. This matches the provided answer: d. both money and time.

As an economic concept, scarcity applies to单项选择题

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