Unit 1.2 Productive Possibility Curve

1.2 Production Possibility Curve

  • Understand the concept of scarcity of economic resources (factors of production)

  • Examine why the "ceteris paribus" condition is necessary to this model

  • Analyze and apply production possibilities curve

  • Define allocative and productive efficiency

1.2 Production Possibility Curve Notes

Scarcity of Economic Resources (Factors of Production):
Scarcity in economics refers to the fundamental condition where resources are limited relative to the unlimited wants and needs of individuals and societies. Economic resources, also known as factors of production, are the inputs used in the production of goods and services. These include land, labor, capital, and entrepreneurship. Scarcity implies that choices must be made about how to allocate resources efficiently to satisfy needs and wants.

"Ceteris Paribus" Condition in Economic Models:
"Ceteris Paribus" means "all other things being equal." This assumption is necessary in economics to isolate and analyze the impact of one variable while holding others constant. In the context of scarcity, it helps focus on how resource allocation decisions affect outcomes without interference from multiple changing factors.

Production Possibilities Curve (PPC) Analysis and Application:
A PPC illustrates the maximum output combinations of two goods/services an economy can produce using available resources and technology. It shows trade-offs, opportunity cost, and resource allocation decisions. Points on the curve represent efficiency; inside the curve, underutilization; and outside the curve, unattainable with current resources.

Moving along the PPC demonstrates opportunity cost. As more of one good is produced, the opportunity cost of the other increases, reflecting the law of increasing opportunity costs.

Define Allocative and Productive Efficiency:

  • Efficient: cannot produce more of one good without decreasing production of another good

  • Allocative Efficiency: Occurs when resources are distributed to maximize total societal satisfaction. On a PPC, this happens when the mix of goods reflects consumer preferences—where marginal benefit equals marginal cost.

  • Productive Efficiency: Achieved when goods/services are produced at the lowest cost using all available resources. Represented by any point on the PPC—no resources are wasted and no additional output can be produced without sacrificing another.

Opportunity Cost and the PPC

Opportunity costs: the highest valued, foregone alternative to any decision made

  • exist due to trade-offs

  • what you could have done, acquired, earned

  • the next best thing

Example: Determine the opportunity cost

  • It’s Thursday, you have Econ test Friday. You can either study for the test of go to movie with friends. You study economics.

Opportunity Cost: going to the movie

  • Linear OC & PPC: constant opportunity cost

    • we often see an increasing OC

Production Possibilities Curve: simplified model of an economy producing only two goods

  • X-Y Coordinate plane: potential output combinations

  • Curve: represents output combinations which occur due to efficient, sustainable use of available resources

  • Gives a snapshot of an economy at a given time - are resources being utilized efficiently?

  • Illustrates the concepts of trade-offs and opportunity costs: in a world of scarcity, in order to gain something, something else must be given up

  • Point has to be on the curve to be considered efficient

  • Below the curve: resources are not being used efficiently, under-producing, could be doing more with resources

  • Above the curve: not attainable with resource base

    • is attainable by seeing change in curve itself, expanding outwards in order to expand capacity