Is Greg Mankiw jealous?

He writes

I am comfortably in the top 1 percent.  I believe that Paul [Krugman], with his Princeton professorship, regular Times column, speaking fees, and moderately successful textbook, is there as well.

Note the description "moderately successful" but no mention of the $1,000,000 that Paul got with his Nobel prize. Did the Nobel just slip his mind momentarily?

I'm just poking fun here. Greg is a great economist and I like his blog.