ECO155 Economics

EconomicsUnit 18 min read

Scarcity, Choice & Resource Allocation

Unit 1 of Economics: Explores why resources are limited, how choices shape economic decisions, and how societies allocate scarce resources efficiently—with real-world examples from Nepal’s economy and daily life.

TAKEAWAYS:

  • Scarcity forces trade-offs because unlimited wants clash with limited resources.
  • Opportunity cost is the true cost of any choice (e.g., studying vs. working).
  • Production Possibility Curve (PPC) visually shows trade-offs and efficiency.
  • Allocation methods (market, command, tradition) determine how resources are used.
  • Nepal’s remittance economy and loan interest reflect scarcity and choice daily.
  • Understanding these concepts helps explain why prices rise or fall in markets.

1. The Problem of Scarcity

Economics begins with a simple but profound truth: resources are limited, but human wants are unlimited. This gap creates scarcity, the core issue economics addresses.

Why Scarcity Exists

  • Limited Resources: Land, labor, capital, and entrepreneurship (LLCE) are finite.
  • Unlimited Wants: People desire more goods (e.g., smartphones, education) than can be produced with available resources.
  • Trade-offs: Choosing one thing means giving up another (e.g., saving for a car vs. traveling).

Example: Nepal’s Remittance Economy

Nepal relies heavily on remittances (money sent home by workers abroad). In 2023, remittances accounted for 28% of Nepal’s GDP (Nepal Rastra Bank). This shows:

  • Scarcity of domestic jobs: Many Nepalis work abroad because local opportunities are limited.
  • Choice: Families allocate remittance money between education, housing, or consumption.
  • Opportunity cost: Spending on a house means less money for children’s education.

FIGURE 1: Scarcity and Choice in Nepal’s Remittance

```mermaid
flowchart TD
    A[Limited Domestic Jobs] -->|Scarcity| B[Emigration]
    B --> C["Remittance Income (₹2.5T in 2023)"]
    C --> D[Choice: Education or House?]
    D --> E["Opportunity Cost: Trade-off"]

2. The Concept of Choice

Scarcity forces individuals, firms, and governments to make choices. Every decision involves:

  1. What to produce? (e.g., Nepal’s focus on hydropower vs. agriculture).
  2. How to produce it? (e.g., manual labor vs. machinery).
  3. For whom to produce? (e.g., who gets loans from banks?).

Opportunity Cost: The True Cost

Opportunity cost is what you give up to get something else. Worked Example: Studying vs. Working

  • Scenario: A student in Pokhara can either:
    • Work part-time (₹10,000/month) or
    • Study full-time (forces them to borrow ₹5,000/month).
  • Opportunity cost of studying:
    • Lost wages: ₹10,000/month.
    • Interest on loan: ₹500/month.
    • Total: ₹10,500/month.

FIGURE 2: Opportunity Cost of Studying

mermaid
pie title Opportunity Cost of Studying
    "Lost Wages: ₹10,000" : 76.9
    "Loan Interest: ₹500" : 3.8
    "Time Cost (Sleep/Health)" : 19.3

3. Resource Allocation

Societies allocate scarce resources using different methods:

Method How It Works Example in Nepal
Market Prices guide allocation (supply/demand). Daraz uses algorithms to allocate stock.
Command Government decides allocation. NEPSE regulates stock market trading.
Tradition Customs dictate allocation. Caste-based land inheritance.
Mixed Combination of methods. Nepal’s economy (market + government).

Market Allocation: Daraz’s Inventory

Daraz uses supply and demand to allocate products:

  • High demand (e.g., smartphones) → Higher prices → More suppliers.
  • Low demand (e.g., winter coats in summer) → Lower prices → Fewer suppliers.

FIGURE 3: Daraz’s Supply-Demand Allocation

```figure
{"type":"curves","lines":[{"label":"Demand (D)","from":[0,10],"to":[10,0],"style":{"color":"#ff6b6b"}},{"label":"Supply (S)","from":[0,5],"to":[10,15],"style":{"color":"#4ecdc4"}}],"points":[{"x":5,"y":5,"label":"E (Equilibrium)","xmark":"Q*","ymark":"P*"},{"x":2,"y":8,"label":"Winter Coats (Low Demand)","style":{"color":"#95a5a6"}},{"x":8,"y":2,"label":"Smartphones (High Demand)","style":{"color":"#95a5a6"}}],"xlabel":"Quantity (Units)","ylabel":"Price (₹)","caption":"Daraz’s supply-demand allocation: High demand for smartphones drives prices up, reducing winter coat suppliers."}

4. Production Possibility Curve (PPC)

The PPC shows maximum possible output given scarce resources. It illustrates:

  • Efficiency: Points on the curve (e.g., A).
  • Inefficiency: Points inside the curve (e.g., B).
  • Unattainable: Points outside the curve (e.g., C).

Worked Example: Nepal’s Hydropower vs. Agriculture

Assume Nepal can produce:

  • 100 units of hydropower or 200 units of rice with current resources.
  • PPC Equation:
    • (where = hydropower, = rice).
  • Scenario: If Nepal produces 50 units of hydropower, how much rice?
    • → .

FIGURE 4: Nepal’s PPC (Hydropower vs. Rice)

mermaid
pie title Nepal’s PPC (100 units max)
    "Hydropower: 100" : 50
    "Rice: 200" : 50
    "Unattainable" : 0

Visual PPC with Numbers:

FIGURE 5: PPC Graph
```figure
{"type":"graph","fns":[{"expr":"x^2 - 100","label":"Hydropower (Y)"},{"expr":"100 - x^2","label":"Rice (X)"}],"x":[0,100],"y":[0,100],"points":[{"x":0,"y":100,"label":"0 Rice, 100 Hydropower"},{"x":50,"y":75,"label":"Efficient Allocation"},{"x":100,"y":0,"label":"100 Rice, 0 Hydropower"}],"shade":[[0,0],[100,100],[0,100],[100,0]],"xlabel":"Rice (Tons)","ylabel":"Hydropower (MW)","caption":"Nepal’s PPC: Trade-offs between hydropower and rice production."}

Caption: Nepal’s PPC: Moving from point A (all hydropower) to C (all rice) requires trade-offs.


5. Economic Systems and Allocation

Different economic systems allocate resources differently:

Private Sector (45%)Public Sector (30%)Informal Sector (25%)
Nepal’s economic system composition (approximate).
System Key Feature Nepal’s Example
Capitalist Private ownership, market-driven. Daraz, Pathao (ride-hailing apps).
Socialist Government ownership, equality focus. NEPSE (regulated stock market).
Mixed Combination of both. Nepal’s economy (private + public).

Nepal’s Mixed Economy

  • Private sector: Daraz, Khalti (digital payments).
  • Public sector: NTC (telecom), Nepal Rastra Bank (monetary policy).

FIGURE 6: Nepal’s Mixed Economy


6. Real-World Applications

In the Real World

  1. eSewa’s Dynamic Pricing

    • Idea: Elasticity of demand (Unit 5).
    • How: eSewa adjusts transaction fees based on demand (e.g., higher fees during festivals).
    • Why: When more people use eSewa (high demand), fees rise to balance supply.
  2. Ncell’s 4G Rollout

    • Idea: Opportunity cost (Section 2).
    • How: Ncell chose to invest in 4G instead of expanding rural coverage, giving up slower but broader access.
    • Why: Higher profits from urban users justified the trade-off.
  3. NEPSE’s Stock Market Crashes

    • Idea: Scarcity of liquidity (Section 1).
    • How: During crashes, few buyers/sellers → scarce trading opportunities → volatile prices.
    • Why: NEPSE must regulate to ensure fair allocation of stocks.

FIGURE 7: NEPSE Stock Market Volatility (2020-2023)

mermaid
linechart
    title NEPSE Index (2020-2023)
    "2020" : 2500
    "2021" : 3200
    "2022" : 2800
    "2023" : 3500

Caption: Scarcity of liquidity during crashes (e.g., 2022 dip) forces NEPSE to intervene.


Exam Tip

  • Scarcity: Always link to real Nepalese examples (remittances, hydropower, NEPSE).
  • Opportunity Cost: Use numerical examples (e.g., studying vs. working).
  • PPC: Draw a labeled graph with numbers (e.g., hydropower vs. rice).
  • Allocation Methods: Compare market vs. command using Nepal’s economy.
  • Key Terms: Define scarcity, choice, opportunity cost, PPC clearly.
  • Common Mistake: Don’t confuse scarcity (limited resources) with shortage (temporary lack).

Practice Question: "Explain how Nepal’s reliance on remittances reflects the concepts of scarcity and choice. Use a PPC to illustrate the trade-offs faced by a Nepali family receiving remittances."

Based on the TU BIT syllabus for Economics (ECO155), unit 1.

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