I've noticed over the past few months or so that Mankiw has cut down his more opinionated and meaty posts in favor of re-postings or just links gotten from others.
Here he mentions Modern Monetary Theory, which I've taken an interest in lately, but that's it. He just...mentions it. I'd LOVE to know what he thinks he knows about it, and what he thinks about it. Alas he seems to have reduced his blog to a link-site.
Maybe he's just scared of posting too many of his own opinions. Though, I have no idea what would make him hesitant to do so.