The writer needs to be able to access the book we are using. The name of the bo
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The writer needs to be able to access the book we are using. The name of the book is Principles of Macroeconomics from 2011. The author has chosen to remain unnamed but the book can be found if you google it. After reading the first 5 chapters of the textbook briefly describe the main policy challenges that macroeconomics addresses and what are the main concepts used in macroeconomics?