Andrew Gelman provides a nice rejoinder to Nicholas Christakis' New York Times op-ed, "Let's Shake up the Social Sciences." Fabio Rojas scores the exchange for Christakis, but his commentators provide convincing rebuttals to Rojas. Once again, I suspect reactions to the column are driven by homophily rather than network effects. But all this aside, Christakis makes an interesting claim about the evidence for stagnation: In contrast, the...
