This is great (Barry Ritzholz).
I don't doubt that taxes affect incentives to be productive, but N. Gregory Mankiw seems to be exaggerating them in last week's op-ed.
Read them all. They're a hoot. Here's one of my favorites.
5. You teach at Harvard and live in “Taxachusetts.” If state taxes are so important, have you considered teaching at Yale, and living in much lower state tax land of Connecticut?