A lot of times, I have to reread Brad DeLong a couple of times to get what he is trying to say.

I am not sure I completely understand all the arguments for and against the relationship between deficit and long term economic growth presented in the comments section . But none of those detract from his core argument of why it's time for Glenn Hubbard to quit as CEA Chair.

A more accessible story that provides background is here.

Update: Two defences of Glen Hubbard