Although not explicitly mentioned in Chapter 20, John Maynard Keynes is considered a foundational source in the understanding of macroeconomics. After performing research outside the textbook, please explain in three well-structured paragraphs the basic principles of the NewKeynesian Economicand how it addresses perceived limitations to classic Keynesian theory.

https://my.uopeople.edu/pluginfile.php/1018935/mod_book/chapter/256177/Principles%20Of%20Economics%20Chapter%2020.pdf