I used those textbooks in college and think they're pretty great. But when I read that Tyler Cowen and Alex Tabarrok are releasing their own Macroeconomic Principles textbook I was reminded of an old post from Mankiw:
More competition, as Mankiw would say.
[...] It is true that my university salary is reasonably secure, but more of my income comes from book royalties than salary, and that income is anything but stable. Any day now, someone could come along with a better textbook and put me out of business.
On this last point, of course, I am speaking hypothetically.
This article available online at:
http://www.theatlantic.com/politics/archive/2009/05/economics-textbook-showdown/17219/
