Microeconomics Basics & Market Structures: Definitions, Scarcity, and Models

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Core Concepts: What is Microeconomics?

Microeconomics studies individual decision-making by households, firms, and governments in allocating limited resources to satisfy unlimited wants. It focuses on:

• What to produce? (e.g., tea vs. coffee in Nepal)
• How to produce? (e.g., Daraz’s warehouse efficiency)
• For whom to produce? (e.g., Ncell’s mobile plans for low-income users)

Key Definitions

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The Economic Problem: Scarcity and Choice

1. The Fundamental Economic Problem

• Unlimited wants (e.g., Nepalese demand for smartphones, cars, education) vs. limited resources (land, labor, capital, entrepreneurship).
• Trade-offs: Every choice has a cost (e.g., NTC spending on infrastructure vs. salaries).

2. Production Possibility Curve (PPC)

Shows maximum possible production of two goods with fixed resources.

Worked Example: Nepal’s Tea vs. Tourism

• Assume Nepal can produce:
  • 100 tons of tea or
  • 10,000 tourists or
  • A combination (e.g., 50 tons tea + 5,000 tourists).
• Opportunity Cost: To produce 1 extra ton of tea, Nepal must reduce tourism by 100 visitors.

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Why is the PPC Bowed Out?

• Increasing Opportunity Cost: Resources aren’t perfectly adaptable (e.g., land better suited for tea than hotels).

3. Shifts in PPC

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Market Structures: How Firms Compete

Microeconomics classifies markets based on:

1. Number of firms (few vs. many).
2. Product differentiation (unique vs. identical).
3. Barriers to entry (easy vs. difficult).

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Real-World Applications

1. eSewa and Perfect Competition

• Idea: Many small sellers (e.g., tea farmers) compete with identical products (tea leaves).
• How it works:
  • Farmers sell at the market equilibrium price (where supply = demand).
  • No single farmer can influence the price (price taker).
• Example: If one farmer raises the price of tea, buyers switch to another farmer.

2. Daraz’s Monopolistic Competition

• Idea: Product differentiation (e.g., "Fastest Delivery," "Cash on Delivery").
• How it works:
  • Daraz sets prices slightly higher than competitors (e.g., Amazon Nepal) but attracts customers with unique features.
  • Low barriers to entry: Any business can start selling on Daraz.

3. NTC’s Monopoly (Historically)

• Idea: Single seller with no close substitutes.
• How it works:
  • NTC could set high prices with no competition (until privatization).
  • Disadvantage: No incentive to improve service (e.g., slow internet speeds).

4. Kathmandu Traffic: Oligopoly of Roads

• Idea: Few "roads" (like firms) dominate transport routes.
• How it works:
  • Barriers: Building new roads is expensive (like telecom towers).
  • Interdependence: If one route (e.g., Ring Road) is congested, drivers switch to another (e.g., Swoyambhu Marg), causing tacit collusion (unspoken agreement to avoid competing directly).

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Worked Example: Tea Market in Nepal

Scenario: Nepal produces 100,000 tons of tea annually. Demand is:

• Price (Rs/kg): 200 | 150 | 100
• Quantity Demanded (tons): 80,000 | 100,000 | 120,000 Supply is:
• Price (Rs/kg): 200 | 150 | 100
• Quantity Supplied (tons): 120,000 | 100,000 | 80,000

Questions:

1. What is the equilibrium price and quantity?
2. If the government sets a price floor at Rs. 180/kg, what happens?
3. How does export demand (e.g., from India) affect the market?

Solution:

1. Equilibrium: Where supply = demand → Rs. 150/kg, 100,000 tons.

2. Price Floor at Rs. 180/kg:
   • Surplus: 120,000 (supplied) – 90,000 (demanded) = 30,000 tons surplus.
   • Result: Farmers store tea or sell at lower prices illegally.
3. Export Demand:
   • Shift in Demand: Rightward (higher demand at every price).
   • New Equilibrium: Higher price (e.g., Rs. 170/kg) and quantity (e.g., 110,000 tons).

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Why Market Structures Matter

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Exam Tip

1. Definitions: Always define key terms (e.g., "Perfect competition is a market with many firms selling identical products with no barriers to entry").
2. Diagrams: Draw PPC, supply/demand curves, and market structure tables in exams. Label axes, equilibrium points, and shifts clearly.
   • Example: For a monopoly, show:
     • High price, low quantity (vs. perfect competition).
     • Deadweight loss (lost economic efficiency).
3. Real-World Links: Connect theory to Nepal’s economy:
   • Use tea farmers for perfect competition.
   • Use NTC/Daraz for monopoly/monopolistic competition.
   • Use traffic congestion for oligopoly.
4. Numerical Questions: Practice calculating:
   • Equilibrium price/quantity.
   • Surpluses/shortages from price controls.
   • Opportunity costs (e.g., "If Nepal spends Rs. 1 billion on roads, what’s the opportunity cost?").
5. Common Mistakes to Avoid:
   • Confusing monopoly (one firm) with oligopoly (few firms).
   • Forgetting to label shifts (e.g., demand shifts right for higher income).
   • Ignoring non-price competition (e.g., ads, branding in monopolistic competition).

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Final Checklist for Exams:

• Can you define scarcity, opportunity cost, and PPC?
• Can you draw and explain supply/demand curves for a real product (e.g., tea, smartphones)?
• Can you compare all four market structures in a table?
• Can you analyze a price control scenario (floor/ceiling) with diagrams?
• Can you link theory to Nepal’s economy (e.g., Daraz, NTC, tea farmers)?