You may remember that when the president was scaring up support for government stimulus, he maintained that "economists from across the political spectrum agree" (later ratcheted up to the more wide-ranging "every economist, from the left and the right") on the need to waste money to save the economy.
You may not remember that the libertarian Cato Institute quickly exposed this falsehood by producing 200 economists from top schools across the nation repudiating the assertion.
I can find an economist to tell you a lot of things. There are many who share my worldview. Most of them are pretty sharp. Certainly, no one can question the intellectual talent of Romer.
But we always should remember Woody Allen's truism: "That's one thing about intellectuals: They've proved that you can be absolutely brilliant and have no idea what's going on."