As an economic concept, scarcity applies to

Question

BlackTom AI · Accepted Answer

Scarcity means resources are limited relative to unlimited human wants; therefore it applies to any resource that must be allocated and for which choices (and opportunity costs) arise.

1) Relevant knowledge points and concepts
- Scarcity: finite availability of resources so people must make choices.  
- Opportunity cost: the next best alternative forgone when a choice is made.  
- Resources include tangible (money, goods) and intangible (time, attention).

2) Step-by-step reasoning
- Start with the definition: if a resource is limited and cannot satisfy all wants at zero cost, it is scarce.  
- Apply to money: individuals have limited income. Example: if you have $100 and want items costing $140, you cannot buy all — choices must be made, so money is scarce.  
- Apply to time: each person has 24 hours per day. If work, sleep and chores take up those hours, you cannot do everything else you might want — time is limited, so it is scarce.  
- Because both satisfy the scarcity definition (limited supply, requires choice), scarcity applies to both.

3) Intermediate steps / simple illustrations
- Money example: Income = $100, desired purchases = $140 → deficit $40 → must choose which purchases to forgo (opportunity cost).  
- Time example: 24 hours/day − (8 hours sleep + 8 hours work + 2 hours commuting = 14 hours) → 10 hours remain for other uses; you must allocate those hours among alternatives.

4) Why the correct answer is correct
- Both money and time are limited resources that force trade-offs and have opportunity costs, so scarcity applies to both.

5) Why the other options are incorrect
- a. "time but not money": incorrect because money is limited (income constraints) and requires choices.  
- c. "money but not time": incorrect because time is nonrenewable and limited for everyone.  
- d. "neither time nor money": incorrect because both clearly meet the scarcity definition.

6) Conclusion
Therefore the correct choice is b. both money and time, which matches the provided answer.

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

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