《西方经济学》双语课件PPTch01-Ten Principles of Economics

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income from the well-off to the poor. But this reduces the incentive to work and produce, and shrinks the size of the economic “pie.”
CHAPTER 1 TEN PRINCIPLES OF ECONOMICS
Principle #1: People Face Tradeoffs
All decisions involve tradeoffs. Examples:
▪ Going to a party the night before your midterm
leaves less time for studying.
decisions?
▪ What are the principles of how people interact? ▪ What are the principles of how the economy as a
whole works?
CHAPTER 1 TEN PRINCIPLES OF ECONOMICS
• how people decide how much to work, save,
and spend, and what to buy
• how firms decide how much to produce,
how many workers to hire
• how society decides how to divide its resources
6
HOW PEOPLE MAKE DECISIONS
Principle #2: The Cost of Something Is What You Give Up to Get It
Examples: The opportunity cost of… …going to college for a year is not just the tuition,
at the heart of economics.
▪ The first four
principles deal with how people make decisions.
CHAPTER 1 TEN PRINCIPLES OF ECONOMICS
3
HOW PEOPLE MAKE DECISIONS
between national defense, consumer goods, protecting the environment, and other needs
CHAPTER 1 TEN PRINCIPLES OF ECONOMICS
2
HOW PEOPLE MAKE DECISIONS
▪ Decision making is
5
HOW PEOPLE MAKE DECISIONS
Principle #2: The Cost of Something Is What You Give Up to Get It
▪ Making decisions requires comparing the costs
and benefits of alternative choices.
In this chapter, look for the answers to these questions:
▪ What kinds of questions does economics address? ▪ What are the principles of how people make
1
What Economics Is All About
▪ Scarcity refers to the limited nature of society’s
resources.
▪ Economics is the study of how society manages
its scarce resources, including
▪ efficiency: getting the most out of scarce
resources
▪ equity: distributing prosperity fairly among
society’s members
▪ Tradeoff: To increase equity, can redistribute
1 Ten Principles of Economics
PRINCIPLES OF
ECONOMICS
FOURTH EDITION
N. G R E G O R Y M A N K I W
PowerPoint® Slides by Ron Cronovich
© 2007 Thomson South-Western, all rights reserved
CHAPTER 1 TEN PRINCIPLES OF ECONOMICS
4
HOW PEOPLE MAKE DECISIONS
Principle #1: People Face Tradeoffs
▪ Society faces an important tradeoff:
efficiency vs. equity
▪ Having more money to buy stuff requires working
longer hours, which leaves less time for leisure.
▪ Protecting the environment requires resources
that might otherwise be used to produce consumer goods.
▪ The opportunity cost of any item is whatever
must be given ห้องสมุดไป่ตู้p to obtain it.
▪ It is the relevant cost for decision making.
CHAPTER 1 TEN PRINCIPLES OF ECONOMICS
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