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ECON107 Principles of Microeconomics Week 3 SEPTEMBER 2013

Chapter-2. ECON107 Principles of Microeconomics Week 3 SEPTEMBER 2013. 2. The Economic Problem. Lesson Objectives. Define the production possibilities frontier (PPF) and use it to calculate opportunity cost

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ECON107 Principles of Microeconomics Week 3 SEPTEMBER 2013

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  1. Chapter-2 ECON107Principles of MicroeconomicsWeek 3SEPTEMBER 2013

  2. 2 The Economic Problem

  3. Lesson Objectives • Define the production possibilities frontier (PPF) and use it to calculate opportunity cost • Distinguish between production possibilities and preferences and describe an efficient allocation of resources • Explain how current production choices expand future production possibilities • Explain how specialization and trade expand production possibilities • Describe the economic institutions that coordinate decisions

  4. Definition of PPF • The production possibilities frontier (PPF) is the boundary between those combinations of goods and services that can be produced and those that cannot. • To illustrate the PPF, we focus on two goods at a time and hold the quantities of all other goods and services constant. So PPFIdentifies the various possible combinations of the two types of goods that can be produced when all available resources are employed fully and efficiently.

  5. Production Possibilities and Opportunity Cost Point A and F identify the amount of consumer goods and capital goods, respectively, that can be produced per year if all the economy’s resources are used to efficiently Points along the curve between A and F identify other possible combinations of the two goods than can be produced when all the economy’s resources are used efficiently

  6. Production Efficiency • We achieve production efficiency if we cannot produce more of one good without producing less of some other good. Points on the frontier are efficient. • Tradeoff Along the PPF Every choice along the PPF involves a tradeoff. On this PPF, we must give up some consumer goods to get more capital goods or give up some capital goods to get more consumer goods.

  7. Opportunity Cost • As we move down along the PPF, we produce more capital goods, but have to produce less quantity of consumer goods. • The opportunity cost of a capital good is the value of consumer good forgone.

  8. Shape of the PPF & Marginal Cost • The shape of the PPF reflects the Law of Increasing Opportunity Costs, and it explains that: When the economy uses all resources efficiently, each additional increment of one good requires the economy to sacrifice successively larger and larger increments of the other good • The marginal cost of a good or service is the opportunity cost of producing one more unit of it.

  9. Preferences and Marginal Benefit • Preferences are a description of a person’s likes and dislikes. • The marginal benefit of a good or service is the benefit received from consuming one more unit of it. We measure marginal benefit by the amount that a person is willing to pay for an additional unit of a good or service.

  10. Principle of Decreasing Marginal Benefit • It is a general principle that: The more we have of any good, the smaller is its marginal benefit and the less we are willing to pay for an additional unit of it. It is called the principle of decreasing marginal benefit.

  11. Using Resources Efficiently • Allocative Efficiency • When we cannot produce more of any one good without giving up some other good, we have achieved production efficiency. We are producing at a point on the PPF. • The point of allocative efficiency is the point on the PPF at which marginal benefit equals marginal cost. • This point is determined by the quantity at which the marginal benefit curve intersects the marginal cost curve.

  12. Using Resources Efficiently • Allocative Efficiency

  13. Economic Growth • The expansion of production possibilities—and increase in the standard of living—is called economic growth.

  14. Economic Growth • Three key factors influence economic growth: • Technological change • Capital accumulation • Changes of labor availability

  15. Economic Growth • Technological Change is the development of new goods and of better ways of producing goods and services. Advance technology increase labor productivity. If technological change that benefits capital goods If technological change that benefits consumer goods

  16. Economic Growth • Capital Accumulation is the growth of capital resources, which includes human capital (Education, training, job experience) and physical capital(machineries, roads and freeways, buildings etc.). • Changes in Labor Availability is the growth in the labor supply, which includes increase population, increase labor force participation, and increase average work per worker.

  17. Economic Growth Population Labor force participation Average hours per worker Quantity of labor Total Output Labor productivity • Physical capital • Human capital • Education and training • Job experience • Technology

  18. Gains from Trade • Comparative advantage states that the individual, firm, region, or country with the lowest opportunity cost of producing a particular good or service should specialize in producing that good or service • Absolute advantage means being able to produce a product using fewer resources than other producers require • Absolute advantage involves comparing productivities while comparative advantage involves comparing opportunity costs.

  19. Gains from Trade AL-Baik First food In an hour, Al-Baik can produce 30 chicken burgers or 30 salads. Al-Baik's opportunity cost of producing 1 chicken burger is 1 salad. Al-Baik's opportunity cost of producing 1 salad is 1 chicken burger. Table: Al-Baik’s Production Possibilities

  20. Gains from Trade KFC First food In an hour, KFC can produce 6 chicken burgers or 30 salads. KFC's opportunity cost of producing 1 chicken burger is 5 salads and opportunity cost of producing 1 salad is 1/5 chicken burger. Table: KFC’s Production Possibilities

  21. Gains from Trade Al-Baik’s has an absolute advantage in producing both chicken burger and Salam (15 & 15) than KFC (5 & 5). Al-Baik’s has a comparative advantage in producing chicken burger, while KFC has comparative in producing Salad.

  22. Economic Coordination • To reap the gains from trade, the choices of individuals must be coordinated. • To make coordination work, four complimentary social institutions have evolved over the centuries: • Firms • Markets • Property rights • Money

  23. Economic Coordination • A firm is an economic unit that hires factors of production and organizes those factors to produce and sell goods and services. • A market is any arrangement that enables buyers and sellers to get information and do business with each other. • Property rights are the social arrangements that govern ownership, use, and disposal of resources, goods or services. • Money is any commodity or token that is generally acceptable as a means of payment.

  24. Economic Coordination • Circular Flows Through Markets Figure illustrates how households and firms interact in the market economy. Factors of production and goods and services flow in one direction. Money flows in the opposite direction.

  25. Now it’s over for today. Do you have any question?

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