Healy's Tweet Sparks Debate in New York Times

A tweet by Kieran Healy about the Nobel Prize in Economics prompted an Op-Ed piece by Harvard’s Raj Chetty in the New York Times, and began a debate that Paul Krugman and others have since weighed in on. 

Chetty: http://www.nytimes.com/2013/10/21/opinion/yes-economics-is-a-science.html?pagewanted=2&pagewanted=all

Krugman I: http://krugman.blogs.nytimes.com/2013/10/21/maybe-economics-is-a-science-but-many-economists-are-not-scientists/

Krugman II: http://krugman.blogs.nytimes.com/2013/10/22/a-dark-age-of-empirical-work/?_r=0