Principles of Economics

Version 4.0

By Libby Rittenberg, Alan Grant, and Timothy Tregarthen

Published: August 2021
ISBN: 978-1-4533-3769-1

Version 4.0

By Libby Rittenberg, Alan Grant, and Timothy Tregarthen

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- Included online Homework system — at no additional cost. Complete assignments and tests on any device if assigned by your instructor.
- Integrated quizzes and flashcards connected to each online textbook to help you study.

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Access until: July 18, 2026 (one year)

High-quality, full color, printed textbook shipped to your door.
FlatWorld eReader: Mobile-friendly, searchable online textbook
- Included online Homework system — at no additional cost. Complete assignments and tests on any device if assigned by your instructor.
- Integrated quizzes and flashcards connected to each online textbook to help you study.
Downloadable, copy-protected PDF for reading offline on multiple devices—file is yours to keep. Downloaded files are protected by digital rights management and must be accessed using Adobe Digital Editions.
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