1. Chapter 2 Scarcity and the World of Trade-Offs

2. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-2 Introduction Why did homo neanderthalensis disappear, while homo sapiens survived? Economists have proposed homo sapiens was able to specialize and trade. In this chapter, you will learn how today’s societies continue to gain from specialization and trade.

3. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-3 Learning Objectives Evaluate whether even affluent people face the problem of scarcity Understand why economists consider wants but not needs Explain why the scarcity problem induces individuals to consider opportunity costs

4. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-4 Learning Objectives (cont'd) Discuss why obtaining increasing increments of any particular good entails giving up more and more units of other goods Explain why society faces a trade-off between consumption goods and capital goods Distinguish between absolute and comparative advantage

5. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-5 Chapter Outline Scarcity Wants and Needs Scarcity, Choice, and Opportunity Cost The World of Trade-Offs The Choices Society Faces Economic Growth and the Production Possibilities Curve Economic Growth and the Production Possibilities Curve

6. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-6 Chapter Outline (cont'd) The Trade-Off Between the Present and the Future The Trade-Off Between the Present and the Future Specialization and Greater Productivity The Division of Labor Comparative Advantage and Trade Among Nations Comparative Advantage and Trade Among Nations

7. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-7 Did You Know That … There are more than 105 million parking spaces in the United States? Parking spaces take up almost 575 square miles in the United States? Land, like all other resources, is scarce?

8. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-8 Scarcity  Is the most basic concept in all of economics  Occurs when the ingredients for producing things that people desire are insufficient to satisfy all wants  Means we never have enough of everything, including time, to satisfy our every desire

9. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-9 Scarcity (cont'd) What scarcity is NOT  It is not a shortage.  It is not the same thing as poverty.

10. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-10 Scarcity (cont'd) Production  Any activity that results in the conversion of resources into products that can be used in consumption Resources or Factors of Production  Inputs that are used to produce things that people want

11. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-11 Scarcity (cont'd) Resources or Factors of Production  Land  Natural resources or the gifts of nature  Labor  The human resource

12. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-12 Scarcity (cont'd) Resources or Factors of Production  Physical Capital  All manufactured resources  Human Capital  Accumulated training and education of workers

13. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-13 Scarcity (cont'd) Resources or Factors of Production  Entrepreneurship  Person who organizes, manages, and assembles the other resources  Risk taker  Maker of basic business policy decisions

14. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-14 Scarcity (cont'd) Goods versus Economic Goods  Goods are all things from which individuals derive satisfaction or happiness.  Economic goods are scarce goods, for which the quantity demanded exceeds the quantity supplied at zero price.

15. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-15 Scarcity (cont'd) Services  Tasks that are performed for someone else  Can be referred to as intangible goods

16. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-16 Scarcity (cont'd) Recall  Scarcity occurs when the ingredients (resources) for producing things that people desire are insufficient to satisfy all wants.

17. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-17 Wants and Needs Needs  To economists, the term need is not definable. Wants  Goods and services on which we place a positive value  People have unlimited wants.

18. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-18 Scarcity, Choice, and Opportunity Cost Opportunity Cost  The highest-valued, next-best alternative that must be sacrificed to obtain something or to satisfy a want

19. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-19 Scarcity, Choice, and Opportunity Cost (cont'd) Questions  What is the opportunity cost of attending this economics class?  What is the opportunity cost of attending a concert by your favorite band?  What is the opportunity cost of increasing research for an AIDS vaccine?

20. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-20 Scarcity, Choice, and Opportunity Cost (cont'd) In economics, cost is always a forgone opportunity.

21. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-21 Limited Resources & Unlimited Wants Scarcity Choices Opportunity Cost Scarcity, Choice, and Opportunity Cost (cont'd)

22. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-22 E-Commerce Example: Making It Easier to Get to the “Submit Order” Button About half of all consumers who placed items in online “shopping carts” abandon them before authorizing payment. To reduce the opportunity cost of purchasing online, Internet sellers are simplifying the checkout process. For an Internet retailer, what is the opportunity cost of failing to simplify its software in a way that encourages consumers to finalize orders?

23. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-23 The World of Trade-Offs Whenever you engage in any activity, using any resource, you are trading off the use of that resource for one or more alternative uses. The value of the trade-off is represented by the opportunity cost, (that which you give up to obtain something else).

24. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-24 The World of Trade-Offs (cont'd) Opportunity cost graphically  The production possibilities curve (PPC) represents all possible maximum combinations of total output that could be produced.  Along the production possibilities curve, there is a fixed quantity of productive resources of a given quality being used efficiently.

25. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-25 Figure 2-1 Production Possibilities Curve for Grades in Mathematics and Economics (Trade-Offs)

26. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-26 Production Possibilities Curve (PPC) Questions  What would happen to the production possibilities curve if you spent more time studying?  What would happen to your potential grades?  Is it possible that terms of the trade-off might not be constant?

27. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-27 The Choices Society Faces PPC is used to demonstrate related concepts of scarcity, choice, and trade-offs  At the individual level  At the societal level

28. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-28 Figure 2-2 Society’s Trade-Off Between Digital Cameras and Pocket PCs, Panel (a)

29. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-29 Figure 2-2 Society’s Trade-Off Between Digital Cameras and Pocket PCs, Panel (b)

30. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-30 The Choices Society Faces (cont'd) Production possibilities assumptions  Resources are fully employed  Production takes place over a specific time period  Resources are fixed for the time period  Technology does not change over the time period

31. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-31 The Choices Society Faces (cont'd) Technology  Society’s pool of applied knowledge concerning how goods and services can be produced

32. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-32 International Example: Making Death Illegal—At Least, Inside City Limits Why did the town of Le Lavandou, France, make it illegal to die within city limits unless you owned a cemetery plot? The law reflected the decision of the townspeople not to allocate any more land for the use of cemeteries. In effect, they were choosing a point on the production possibilities curve with respect to the use of one scarce resource—land.

33. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-33 The Choices Society Faces (cont'd) Efficiency  The case in which a given level of inputs is used to produce the maximum output possible  Alternatively, the situation in which a given output is produced at minimum cost

34. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-34 The Choices Society Faces (cont'd) Inefficient Point  Any point below the production possibilities curve at which the use of resources is not generating the maximum possible output Law of Increasing Relative Cost  As society attempts to produce more of a good, the opportunity cost of additional units of that good generally increases  Accounts for bowed shape of the PPC

35. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-35 Figure 2-3 The Law of Increasing Relative Cost

36. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-36 The Choices Society Faces (cont'd) In general, the more specialized the resources, the more bowed the PPC

37. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-37 Economic Growth and the Production Possibilities Curve Economic growth  Increases the production possibilities of digital cameras and pocket PCs  Occurs over a period of time  Is illustrated by an outward shift of the production possibilities curve

38. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-38 Figure 2-4 Economic Growth Allows for More of Everything

39. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-39 The Trade-Off Between the Present and the Future PPC  Can be used to illustrate the trade-off between present and future consumption Consumption  The use of goods and services for personal satisfaction

40. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-40 Figure 2-5 Capital Goods and Growth Consumer goods  Goods produced for personal satisfaction Capital goods  Goods used to produce other goods

41. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-41 Figure 2-5 Capital Goods and Growth, Panel (a)

42. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-42 Figure 2-5 Capital Goods and Growth, Panel (b)

43. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-43 Capital Goods and Growth Observations  Forgo consumption goods to produce capital goods  Increase in capital goods stimulates economic growth

44. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-44 Capital Goods and Growth (cont'd) Observations  An increase in capital goods at present will lead to a higher rate of economic growth in the future.  In the future, the economic system can produce more consumer goods.

45. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-45 Specialization and Greater Productivity Specialization  Organization of economic activity among different individuals and regions  Leads to greater productivity

46. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-46 Specialization and Greater Productivity (cont'd) Comparative Advantage  The ability to produce a good or service at a lower opportunity cost  Is always a relative concept

47. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-47 Specialization and Greater Productivity (cont'd) Absolute Advantage  The ability to produce more units of a good or service using a given quantity of labor or resource inputs  Equivalently, the ability to produce the same quantity of a good or service using fewer units of labor or resource inputs

48. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-48 Division of Labor Rational individuals choose their comparative advantage and specialize. Specialization leads to division of labor. Adam Smith, in The Wealth of Nations, illustrated division of labor in pin making.

49. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-49 Division of Labor (cont'd) Division of Labor  Assigning different workers different tasks to produce a good or service  Organizing a division of labor within a firm to increase output Examples  Automobile production  Hospital operating room

50. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-50 Comparative Advantage and Trade Among Nations Recall  Analysis of absolute advantage, comparative advantage, and specialization—applicable to individuals and nations

51. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-51 Comparative Advantage and Trade Among Nations (cont'd) When nations specialize where they have a comparative advantage and then trade with the rest of the world  Economic efficiency improves  Output increases  Average standard of living rises

52. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-52 International Example: Multiple Comparative Advantages in Dishwasher Production Maytag dishwashers assembled in Jackson, Tennessee contain components manufactured throughout the world. Some may consider it a plus to buy an appliance labeled “Made in the USA,” but the overall cost of the dishwasher is lower than it would be if all the individual parts were manufactured within U.S. borders.

53. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-53 Issues and Applications: An Economic Theory of Neanderthals’ Extinction Extinction of Neanderthals was a mystery to anthropologists and archeologists. Question  Why did Cro-Magnon win out over Neanderthals? Answer  Able to develop new technology, specialize, and trade

54. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-54 Summary Discussion of Learning Objectives The problem of scarcity, even for the affluent  Scarcity and poverty are not synonymous. Why economists consider individuals’ wants but not their needs  Needs are not objectively definable.  Wants are things on which we place a positive value.

55. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-55 Summary Discussion of Learning Objectives (cont'd) Why the scarcity problem leads people to evaluate opportunity costs  Allocating resources to producing one good means losing the opportunity to have another one. Why getting more units of one good requires giving up more and more of another  Resources are specialized

56. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-56 Summary Discussion of Learning Objectives (cont'd) There is a trade-off between consumption goods and capital goods.  As more resources are devoted to the production of capital goods, we can expect the rate of economic growth to increase.

57. Copyright © 2008 Pearson Addison Wesley. All rights reserved. 2-57 Summary Discussion of Learning Objectives (cont'd) Absolute versus comparative advantage  One finds one’s absolute advantage by producing more of a specific good than someone else who uses the same amount of resources.  One finds one’s comparative advantage by looking at the activity that has the lowest opportunity cost.

58. End of Chapter 2 Scarcity and the World of Trade-Offs