Chapter 1 Economics: The Study Of Opportunity Cost McGraw-Hill/Irwin Copyright © 2010 by The McGraw-Hill Companies, Inc. All rights reserved. 21-1

CHAPTER OUTLINE ECONOMICS AND OPPORTUNITY COST MODELING OPPORTUNITY COST USING A PRODUCTION POSSIBILITIES FRONTIER ATTRIBUTES OF THE PRODUCTION POSSIBILITIES FRONTIER THINKING ECONOMICALLY Kick it Up a Notch: DEMONSTRATING CONSTANT AND INCREASING OPPORTUNITY COST 21-1

Economics and Opportunity Cost Economics: the study of the allocation and use of scarce resources to satisfy unlimited human wants 21-1

Choices Have Consequences Opportunity Cost The forgone alternative of the choice made Or What you would have done had you not done what you did. 21-1

Modeling Opportunity Cost Using a Production Possibilities Frontier Definitions PPF: a graph which relates the amounts of different goods that can be produced in a fully employed society Model: a simplification of the real world that we can manipulate to explain the real world Simplifying Assumption: an assumption that may, on its face, be silly but allows for a clearer explanation Scarce: not freely available and infinite Resources: anything we either consume directly or use to make things that we will ultimately consume 21-1

Figures 1-4 Building The Production Possibilities Frontier Soda S X Y M Z P Pizza 21-1

A Fully Labeled Production Possibilities Frontier: The Case When People are Different Soda Pizza X Y Z M Unattainable Attainable Unemployment 21-1

Figure 5 Soda Pizza Unattainable Unemployment Attainable (outside the curve) Unemployment (just inside the curve) Attainable (on the curve and on the inside) Pizza 21-1

A Fully Labeled Production Possibilities Frontier: The Case When People are the Same Soda Pizza S Unattainable X Attainable Y M Z Unemployment P 21-1

Figure 6 Soda Pizza Unattainable Unemployment Attainable (outside the curve) Unemployment (just inside the curve) Attainable (on the curve and on the inside) Pizza 21-1

Increasing and Constant Opportunity Cost Increasing Opportunity Cost Exists when the additional resources required to produce an additional unit grows as more output is produced. Likely to occur when people are different in their skills. Constant Opportunity Cost Exists when the additional resources required to produce an additional unit remains the same as more output is produced. Likely to occur when people are identical in their skills. 21-1

The Big Picture circular flow model: A model that shows the interactions of all economic actors Markets are where the interactions take place Actors are the entities interacting 21-1

Markets in a Circular Flow Diagram Market: Any mechanism by which buyers and sellers negotiate an exchange Factor Market: A mechanism by which buyers and sellers of labor and financial capital negotiate an exchange. Goods and Services Market: A mechanism by which buyers and sellers of goods and services negotiate an exchange. Foreign Exchange Market: A mechanism by which buyers and sellers of the currencies of various countries negotiate an exchange. 21-1

Actors in a Circular Flow Diagram Households Firms Government 21-1

The Circular Flow Diagram 21-1

Thinking Economically: Marginal Analysis Optimization Assumption: an assumption that suggests that the person in question is trying to maximize some objective Marginal Benefit: the increase in the benefit that results from an action Marginal Cost: the increase in the cost that results from an action Net Benefit: the difference between all benefits and all costs 21-1

Positive and Normative Analysis Positive Analysis: a form of analysis that seeks to understand the way things are and why they are that way Normative Analysis: a form of analysis that seeks to understand the ways things should be 21-1

Economics Incentives Incentive: something that influences the decisions we make Examples: prices influence the amount we buy; taxes influence how much we work and save 21-1

Logical Flaws Fallacy of Composition: the mistake in logic that suggests that the total economic impact of something is always and simply equal to the sum of the individual parts Correlation = Causation: the mistake that suggests that because two variables are correlated that one caused the other to happen. 21-1

Demonstrating Increasing and Constant Opportunity Cost Kick it Up a Notch Demonstrating Increasing and Constant Opportunity Cost 21-1

Figure 7 Illustrating Increasing Opportunity Cost Production Possibilities Frontier Pizza Soda 0 1 2 3 10 9 8 7 6 5 4 3 2 1 Opportunity Cost of going from 0 units of Pizza to 1 unit of pizza Opportunity Cost of going from 1 unit of Pizza to 2 units of pizza Opportunity Cost of going from 2 units of Pizza to 3 units of pizza 21-1

Figure 8 Illustrating Constant Opportunity Cost Opportunity Cost of going from 0 units of Pizza to 1 unit of pizza Production Possibilities Frontier Pizza Soda 0 1 2 3 9 8 7 6 5 4 3 2 1 Opportunity Cost of going from 1 unit of Pizza to 2 units of pizza Opportunity Cost of going from 2 units of Pizza to 3 units of pizza 21-1