Paul Krugman @paulkrugman
As they say in the Patrick O'Brian novels, I give you joy of your victory! A few FRED-based thoughts on one of Brad's big insights: that the world didn't really break out of the Malthusian trap until 1870 1/ — PolitiTweet.org
Brad DeLong 🖖 @delong
I am extremely gratified to find myself at #6 on the NYT nonfiction bestsellers after launch week! And today is the… https://t.co/MTT4LHb76e