Provide a short paragraph or two about how the material from Chapters 11 or 12 apply to your life. It might be something you do, something that has impacted your choices or some article you have read that fits the ideas we have examined. Make a clear statement about the class concept 'and' how it has played out in your own life, either personally or professionally.

Chapter 11: The Aggregate Expenditures Model contains a handful of data updates but is otherwise unchanged save for an additional Quick Review and some minor wording improvements. C hapter 12: Aggregate Demand and Aggregate Supply contains a new Global Perspective on the size of various countries' GDP gaps, a new Key Graph on the effect of a negative demand shock when the price level is inflexible, and a decrease in page count thanks to the elimination of the section on downward price rigidity (which was made redundant by the new Ch 26 Last Word on the behavioral economics of sticky prices).

Reference: McConnell, Macroeconomics, 22e