# Scarcity

Business I · Introduction to Economics · https://tryals.app/learn/business-i/scarcity

## The Reality of Scarcities

**Scarcity** is the founding fact of economics: human wants are unlimited, but resources like time, labor, and capital are strictly limited. It is not poverty; a billionaire still only has 24 hours in a day.

Because resources are finite, **every choice excludes others**. Economics studies how individuals and societies make these trade-offs.

| | Free good | Economic good |
|---|---|---|
| **Scarce?** | No, takes nothing from others | Yes, requires a sacrifice |
| **Priced?** | No | Yes, prices make scarcity visible |
| **Example** | Air | Housing, labor |

**Common pitfall:** Treating the three economic questions as government-only decisions. In reality, prices answer them silently millions of times daily.

## Choices and Constraints

Every economic system must answer three core questions: **What** to produce, **How** to produce it, and **For whom** output is distributed.

**The budget constraint** models scarcity in miniature. With income $M$ and two goods priced $p_A$ and $p_B$:

$$p_A q_A + p_B q_B \le M$$

Everything inside the line is affordable; the line itself requires spending every euro. 

**Tip:** Scarcity applies to rich and poor alike because time and resources are universally limited.

## Practice questions

8 of this lesson's 13 practice questions, with answers. The full set is in the app.

### 1. Sort each resource into its classical factor of production.

**Answer:**

- Land: An iron ore deposit, Farmland in the Ebro valley
- Labor: A welder’s workday, A programmer writing code
- Capital: A delivery van fleet, A robotic assembly line

**Why:** Land is what nature provides, labor is human effort, capital is produced means of production, machines and tools made to make other things.

Page: https://tryals.app/practice/business-i/scarcity/sort-each-resource-into-its-classical-factor-of-production

### 2. Match each of the three economic questions to a real decision.

**Answer:**

- What to produce? → A region debates hospitals versus highways
- How to produce? → A factory chooses robots over manual assembly
- For whom to produce? → A tax system redistributes income
- The underlying cause → Resources are scarce relative to wants

**Why:** What, how, and for whom, three questions no economy escapes, all forced by the same underlying scarcity.

Page: https://tryals.app/practice/business-i/scarcity/match-each-of-the-three-economic-questions-to-a-real-decision

### 3. Why does scarcity apply even to a billionaire?

A. It does not, scarcity only affects the poor
B. Billionaires cannot legally buy everything
C. Banks limit how much money can be withdrawn
D. Time, attention and unique goods stay limited

**Answer:** D. Time, attention and unique goods stay limited

**Why:** Scarcity is the gap between unlimited wants and finite resources. Money loosens one constraint but not the 24-hour day, the single front-row seat, or the one original painting, choice never disappears.

Page: https://tryals.app/practice/business-i/scarcity/why-does-scarcity-apply-even-to-a-billionaire

### 4. A country discovers vast oil reserves and its citizens still face trade-offs. Which reading of scarcity does that support?

A. Scarcity is the gap between wants and means, not a quantity
B. Scarcity was solved for oil but persists for other goods
C. The oil is scarce because it will eventually run out
D. The country is not yet using the oil efficiently, so trade-offs remain temporarily

**Answer:** A. Scarcity is the gap between wants and means, not a quantity

**Why:** Wants expand to meet whatever means arrive, so more resources buy a better menu rather than an end to choosing. This is why economics is not the study of poverty and why it applies just as sharply to a rich country's budget debate as to a poor one's.

Page: https://tryals.app/practice/business-i/scarcity/a-country-discovers-vast-oil-reserves-and-its-citizens-still-face

### 5. Which statements correctly describe scarcity?

A. It would disappear if all countries became rich
B. It forces every economic actor to make choices
C. It is the reason economic goods carry prices
D. It applies to time as well as to physical resources

**Answer:** B. It forces every economic actor to make choices; C. It is the reason economic goods carry prices; D. It applies to time as well as to physical resources

**Why:** Wealth relaxes budgets but cannot repeal scarcity: wants expand, time stays fixed, and unique resources stay unique. Choice, and prices, remain.

Page: https://tryals.app/practice/business-i/scarcity/which-statements-correctly-describe-scarcity

### 6. Air is free but bottled water is not, and both are water or gas we cannot live without. What makes one an economic good?

A. That air cannot be owned under any legal system
B. That bottled water requires labour and air does not
C. That consuming it deprives someone else
D. That water is more necessary for survival than air

**Answer:** C. That consuming it deprives someone else

**Why:** Scarcity is contextual. Clean air is a free good where it is abundant and an economic one where it is not, which is exactly what an emissions permit prices.

Page: https://tryals.app/practice/business-i/scarcity/air-is-free-but-bottled-water-is-not-and-both-are-water-or-gas-we

### 7. Anything scarce enough to command a positive price is by definition an economic good.

**Answer:** False

**Why:** False. Scarcity is what makes a good *economic*, and price is a market outcome rather than the definition. Goods that are genuinely scarce can carry a zero price — a congested public road, or clean water where it is provided free — and that mismatch between scarcity and price is exactly where shortages and externalities appear.

Page: https://tryals.app/practice/business-i/scarcity/anything-scarce-enough-to-command-a-positive-price-is-by-definition

### 8. Order the logical chain from scarcity to prices.

**Answer:**

1. Resources are finite while wants keep growing
2. Every use of a resource excludes alternative uses
3. Individuals and societies must choose among options
4. Markets emerge to coordinate millions of choices
5. Prices signal how scarce each good really is

**Why:** From the founding fact to its most visible symptom: scarcity → exclusion → choice → markets → prices.

Page: https://tryals.app/practice/business-i/scarcity/order-the-logical-chain-from-scarcity-to-prices