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Microeconomics Principles A. Goodman

Microeconomics Principles A. Goodman. The course. Class Meets : TTh 9:35 – 10:50, 100 Gen. Lectures Office Hours : TTh 11 – 12, MW 10-12 or by appointment Office location : 2145 FAB Phone : 577-3235; e-mail : allen.goodman@wayne.edu

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Microeconomics Principles A. Goodman

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  1. Microeconomics Principles A. Goodman

  2. The course • Class Meets: TTh 9:35 – 10:50, 100 Gen. Lectures • Office Hours: TTh 11 – 12, MW 10-12 or by appointment • Office location: 2145 FAB • Phone: 577-3235; e-mail: allen.goodman@wayne.edu • Department and Course Web site:http://www.econ.wayne.edu/agoodman/ • Also some material on Blackboard

  3. Text materials The text materials will be: Principles of Microeconomics, 3rd Ed., by N. Gregory Mankiw, to be purchased at the appropriate bookstore … or on-line. Make sure you get the Micro split.

  4. Exams and Grading Students will be responsible for the following assignments: • 3 mid-term exams @ 15% 45% • 1 final exam 30% • Quizzes 15% • Attendance 10% • Intermittent Extra Credit • Friday night YYY, 6:30 – 8:30 pm

  5. Teaching Assistants • Susanne Buesselmann and Meihua Lu. • They’re smarter than I am … so you should listen to them. • They speak for me … and vice versa.

  6. The Curve For some curricula, a grade below C- is considered a failing grade.

  7. What does it cost you to come to WSU? • Think carefully. • What do you GIVE UP in order to come here? These are costs!

  8. Ten Principles of Economics

  9. Economy. . . . . . The word economy comes from a Greek word for “one who manages a household.”

  10. TEN PRINCIPLES OF ECONOMICS • A household and an economy face many decisions: • Who will work? • What goods and how many of them should be produced? • What resources should be used in production? • At what price should the goods be sold?

  11. TEN PRINCIPLES OF ECONOMICS Society and Scarce Resources: • The management of society’s resources is important because resources are scarce. • Scarcity. . . means that society has limited resources and therefore cannot produce all the goods and services people wish to have.

  12. TEN PRINCIPLES OF ECONOMICS Economics is the study of how society manages its scarce resources.

  13. TEN PRINCIPLES OF ECONOMICS • How people make decisions. • People face tradeoffs. • The cost of something is what you give up to get it. • Rational people think at the margin. • People respond to incentives.

  14. TEN PRINCIPLES OF ECONOMICS • How people interact with each other. • Trade can make everyone better off. • Markets are usually a good way to organize economic activity. • Governments can sometimes improve economic outcomes.

  15. TEN PRINCIPLES OF ECONOMICS • The forces and trends that affect how the economy as a whole works. • The standard of living depends on a country’s production. • Prices rise when the government prints too much money. • Society faces a short-run tradeoff between inflation and unemployment.

  16. Principle #1: People Face Tradeoffs. “There is no such thing as a free lunch!”

  17. Principle #1: People Face Tradeoffs. To get one thing, we usually have to give up another thing. • Guns v. butter • Food v. clothing • Leisure time v. work • Efficiency v. equity Making decisions requires trading off one goal against another.

  18. Principle #1: People Face Tradeoffs • Efficiency v. Equity • Efficiency means society gets the most that it can from its scarce resources. • Equity means the benefits of those resources are distributed fairly among the members of society.

  19. Principle #2: The Cost of Something Is What You Give Up to Get It. • Decisions require comparing costs and benefits of alternatives. • Whether to go to college or to work? • Whether to study or go out on a date? • Whether to go to class or sleep in? • The opportunity cost of an item is what you give up to obtain that item.

  20. Principle #2: The Cost of Something Is What You Give Up to Get It. Basketball star Lebron James chose to skip college and go straight from high school to the pros where he has earned millions of dollars.

  21. Principle #3: Rational People Think at the Margin. • Marginal changes are small, incremental adjustments to an existing plan of action. People make decisions by comparing costs and benefits at the margin.

  22. Principle #3: Example • Is my first hamburger at a meal “worth it?” • How about my second? • My third? • My fourth? • And how about whatever I’m using to wash it down ???

  23. Back to Hamburgers!

  24. Principle #4: People Respond to Incentives. • Marginal (incremental) changes in costs or benefits motivate people to respond. • The decision to choose one alternative over another occurs when that alternative’s marginal (incremental) benefits exceed its marginal (incremental) costs!

  25. Principle #5: Trade Can Make Everyone Better Off. • People gain from their ability to trade with one another. • Competition results in gains from trading. • Trade allows people to specialize in what they do best. • QUESTION: • Do you produce EVERYTHING you need?

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