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Scarcity and Resource Allocation

Subject: Economics
Topic: 1
Cambridge Code: 0455 / 2281

Economics Basics​

Economics - Study of how societies manage scarce resources to satisfy unlimited wants

Key Principle: Scarcity​

Scarcity - Limited resources vs. unlimited wants/needs

Economic Problems​

  1. What to produce? - Which goods/services?
  2. How to produce? - What methods/resources?
  3. For whom to produce? - Who gets output?

Factors of Production​

Resources needed to produce goods/services

Four Factors​

Land - Natural resources

  • Soil, forests, minerals, water
  • Income: Rent
  • Fixed supply (limited)

Labour - Human effort and skills

  • Workers, managers, professionals
  • Income: Wages/Salaries
  • Quantity and quality vary

Capital - Man-made resources

  • Machines, buildings, tools
  • Income: Interest
  • Created by investment

Enterprise - Organization and innovation

  • Entrepreneurs, business activity
  • Income: Profit
  • Coordinates other factors

Opportunity Cost​

Opportunity Cost - Value of best alternative foregone

Examples​

  • Choosing university = forgoing 3 years salary
  • Using land for farm = cannot use for housing
  • Spending money on car = cannot spend on house

Production Possibility Curve (PPC)​

Shows maximum possible production combinations

Assumptions:

  • Two goods
  • Fixed resources
  • Fixed technology
  • Full employment
  • Efficient production

Interpretation:

  • Points on curve: fully utilized production
  • Points inside curve: inefficient
  • Points outside curve: impossible
  • Movement along curve: opportunity cost

Economic Systems​

Planned Economy​

  • Government allocates resources
  • Central planning
  • Examples: Cuba, North Korea
  • Advantages: Equal distribution, security
  • Disadvantages: Inefficient, lack of choice

Market Economy​

  • Free market, private ownership
  • Price mechanism allocates resources
  • Examples: USA, UK
  • Advantages: Efficient, innovation, consumer choice
  • Disadvantages: Inequality, externalities

Mixed Economy​

  • Combination of planned and market
  • Government and market both allocate
  • Examples: UK, Germany
  • Most modern economies

Economic Efficiency​

Productive Efficiency​

Output maximized from given resources

Productive Efficiency=OutputInput\text{Productive Efficiency} = \frac{\text{Output}}{\text{Input}}

Allocative Efficiency​

Resources allocated to satisfy consumer preferences

Achieved when:

  • Price = marginal cost
  • Consumers get what they want
  • No waste

Dynamic Efficiency​

Innovation, improvement, research and development

Key Points​

  1. Scarcity creates need to allocate resources
  2. Opportunity cost: value of best alternative
  3. Four factors of production
  4. PPC shows production possibilities
  5. Different economic systems allocate differently
  6. Efficiency types: productive, allocative, dynamic

Practice Questions​

  1. Define scarcity and give examples
  2. Calculate opportunity cost scenarios
  3. Draw and interpret PPC
  4. Compare economic systems
  5. Explain how market allocates resources
  6. Discuss efficiency trade-offs

Revision Tips​

  • Understand scarcity concept
  • Practice opportunity cost calculations
  • Draw and interpret PPC diagrams
  • Know economic systems characteristics
  • Understand price mechanism
  • Know efficiency types