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  • Prof. Ricardo Caballero

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  • International Economics
  • Macroeconomics

Learning Resource Types

Principles of macroeconomics, assignments.

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Problem Set 1 ( ) ( )
Problem Set 2 ( ) ( )
Problem Set 3 ( ) ( )
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Problem Set 5 ( ) ( )
Problem Set 6 ( ) ( )

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Introduction

Chapter objectives.

In this chapter, you will learn about:

  • What Is Economics, and Why Is It Important?
  • Microeconomics and Macroeconomics
  • How Economists Use Theories and Models to Understand Economic Issues
  • How Economies Can Be Organized: An Overview of Economic Systems

Bring It Home

Information overload in the information age.

To post or not to post? Every day we are faced with a myriad of decisions, from what to have for breakfast, to which show to stream, to the more complex—“Should I double major and add possibly another semester of study to my education?” Our response to these choices depends on the information we have available at any given moment. Economists call this “imperfect” because we rarely have all the data we need to make perfect decisions. Despite the lack of perfect information, we still make hundreds of decisions a day.

Streams, sponsors, and social media are altering the process by which we make choices, how we spend our time, which movies we see, which products we buy, and more. Whether they read the reviews or just check the ratings, it's unlikely for Americans to make many significant decisions without these information streams.

As you will see in this course, what happens in economics is affected by how well and how fast information disseminates through a society, such as how quickly information travels through Facebook. “Economists love nothing better than when deep and liquid markets operate under conditions of perfect information,” says Jessica Irvine, National Economics Editor for News Corp Australia.

This leads us to the topic of this chapter, an introduction to the world of making decisions, processing information, and understanding behavior in markets —the world of economics. Each chapter in this book will start with a discussion about current (or sometimes past) events and revisit it at chapter’s end—to “bring home” the concepts in play.

What is economics and why should you spend your time learning it? After all, there are other disciplines you could be studying, and other ways you could be spending your time. As the Bring it Home feature just mentioned, making choices is at the heart of what economists study, and your decision to take this course is as much as economic decision as anything else.

Economics is probably not what you think. It is not primarily about money or finance. It is not primarily about business. It is not mathematics. What is it then? It is both a subject area and a way of viewing the world.

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Want to cite, share, or modify this book? This book uses the Creative Commons Attribution License and you must attribute OpenStax.

Access for free at https://openstax.org/books/principles-economics-3e/pages/1-introduction
  • Authors: Steven A. Greenlaw, David Shapiro, Daniel MacDonald
  • Publisher/website: OpenStax
  • Book title: Principles of Economics 3e
  • Publication date: Dec 14, 2022
  • Location: Houston, Texas
  • Book URL: https://openstax.org/books/principles-economics-3e/pages/1-introduction
  • Section URL: https://openstax.org/books/principles-economics-3e/pages/1-introduction

© Jan 23, 2024 OpenStax. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo are not subject to the Creative Commons license and may not be reproduced without the prior and express written consent of Rice University.

Faculty Resources

Assignments.

icon of a pencil cup

The assignments in this course are openly licensed, and are available as-is, or can be modified to suit your students’ needs. Answer keys are available to faculty who adopt Waymaker, OHM, or Candela courses with paid support from Lumen Learning. This approach helps us protect the academic integrity of these materials by ensuring they are shared only with authorized and institution-affiliated faculty and staff.

The assignments and discussion for this course align with the content and learning outcomes in each module. They will automatically be loaded into the assignment tool within your LMS. They can easily used as is, modified, or removed. You can preview them below.

Note that the Data Project Assignment is split into two parts and spans both module 6 and module 7. The Module 16 assignment presents two options, one that emphasizes topics from macroeconomics, and the other that emphasizes concepts from microeconomics.

1 Economic Thinking
2 Choice in a World of Scarcity
3 Supply and Demand
4 Applications of Supply and Demand
5 Elasticity
6 Macroeconomic Measures: GDP and Economic Growth
 

7 Macroeconomic Measures: Unemployment and Inflation

(a good option if not utilizing the Data Project)
8 The Aggregate Demand-Aggregate Supply Model
 

9 Keynesian and Neoclassical Economics

10 The Income-Expenditure Model
11 Fiscal Policy
 

12 Money and Banking

 

13 Monetary Policy

14 Policy Applications
15 Globalization and Trade
 

16 Exchange Rates and International Finance

  • Assignments. Provided by : Lumen Learning. License : CC BY: Attribution
  • Pencil Cup. Authored by : IconfactoryTeam. Provided by : Noun Project. Located at : https://thenounproject.com/term/pencil-cup/628840/ . License : CC BY: Attribution

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