Relative Scarcity

1. The Concept of Relative Scarcity

Relative scarcity is the fundamental economic problem that arises because society’s unlimited wants and needs exceed the limited resources available to satisfy them. It is not the same as absolute scarcity, which implies a complete lack of a resource. Relative scarcity means there is not enough of a resource to satisfy everyone’s wants at a zero price.

KEY TAKEAWAY: Relative scarcity forces societies and individuals to make choices about how to allocate resources.

1.1 Needs vs. Wants

• Needs: Goods and services essential for human survival, such as food, water, shelter, and clothing.
• Wants: Goods and services that are not necessary for survival but improve the quality of life, such as entertainment, luxury items, and travel.

REMEMBER: Needs are necessities; wants are desires.

1.2 Resources (Factors of Production)

Resources or factors of production are the inputs used to produce goods and services. They are limited in supply. The main categories are:

• Land (Natural Resources): Raw materials from nature, including minerals, forests, water, and fertile land.
• Labor: Human effort, both physical and mental, used in production.
• Capital: Goods used to produce other goods and services, such as machinery, equipment, and factories.
• Enterprise (Entrepreneurship): The ability to combine the other factors of production, take risks, and innovate to produce goods and services.

APPLICATION: Consider how a bakery uses land (location, ingredients), labor (bakers, staff), capital (ovens, mixers), and enterprise (management) to produce bread.

2. The Three Basic Economic Questions

Due to relative scarcity, every society must answer these three fundamental economic questions:

1. What and how much to produce? Which goods and services should be produced, and in what quantities? This involves prioritizing some wants over others.
2. How to produce? Which production methods should be used? This involves choosing the most efficient combination of resources.
3. For whom to produce? How should the goods and services be distributed among the population? This involves considering equity and fairness.

EXAM TIP: When discussing the three economic questions, always link them back to the problem of relative scarcity.

3. Opportunity Cost

Opportunity cost is the value of the next best alternative forgone when making a choice. It represents the potential benefits you miss out on when choosing one option over another.

• It is not simply the monetary cost but the value of the next best alternative.
• Every decision involves an opportunity cost because resources are limited.

COMMON MISTAKE: Confusing opportunity cost with monetary cost. Opportunity cost is about the value of the next best alternative, not just the dollars spent.

Example:

Suppose you have \$100. You can either buy a new video game or a new textbook. If you choose the video game, the opportunity cost is the value of the knowledge and potential academic benefit you would have gained from the textbook.

4. The Production Possibility Frontier (PPF) Model

The Production Possibility Frontier (PPF) is a graphical representation of the maximum combinations of two goods or services that an economy can produce, given its available resources and technology, assuming full and efficient use of those resources.

4.1 Key Concepts Illustrated by the PPF:

• Scarcity: The PPF shows the limit to what can be produced with finite resources. Points outside the PPF are unattainable with current resources and technology.
• Choice: Society must choose a point on the PPF, representing a specific combination of goods.
• Opportunity Cost: Moving along the PPF involves giving up some of one good to produce more of the other. The slope of the PPF represents the opportunity cost of producing one good in terms of the other.
• Efficiency:
  • Productive Efficiency: Points on the PPF represent productive efficiency – all resources are fully employed and used efficiently.
  • Inefficiency: Points inside the PPF represent inefficient use of resources – some resources are unemployed or underemployed.
  • Points outside the PPF are unattainable with current resources and technology.
• Economic Growth: An outward shift of the PPF represents economic growth, indicating an increase in the economy’s productive capacity. This can result from increased resources or technological advancements.

4.2 Diagram Description

A typical PPF diagram has two goods (e.g., consumer goods and capital goods) on the axes. The curve itself represents the maximum possible production of these goods.

• Points on the PPF: Productively efficient.
• Points inside the PPF: Inefficient; resources are not fully employed.
• Points outside the PPF: Unattainable with current resources and technology.

4.3 Shifts in the PPF

The PPF can shift outwards (economic growth) or inwards (economic contraction) due to changes in:

• Quantity of Resources: An increase in available land, labor, or capital shifts the PPF outwards.
• Quality of Resources: Improvements in education, technology, or resource management shift the PPF outwards.
• Technology: Technological advancements allow for more efficient production, shifting the PPF outwards.

STUDY HINT: Practice drawing and interpreting PPF diagrams. Understand how different scenarios (e.g., technological advancements, resource depletion) affect the shape and position of the PPF.

4.4 Shape of the PPF

The PPF is usually bowed outwards (concave to the origin). This reflects the law of increasing opportunity cost. As you produce more of one good, the opportunity cost of producing additional units increases because resources are not perfectly adaptable to the production of both goods.

If resources were perfectly adaptable, the PPF would be a straight line, indicating a constant opportunity cost.

VCAA FOCUS: VCAA often uses PPF diagrams to assess understanding of opportunity cost, efficiency, and economic growth. Be prepared to analyze scenarios and explain how they affect the PPF.