Grumpy before my time

Any article titled "An Economist Goes to a Bar And Solves the Mysteries of Dating" is pretty much guaranteed to annoy me. Now, again, the research here is rather interesting: they ran speed-dating experiments for two years and thus have a huge data set on 4-minute interactions between Columbia grad students, at the end of which each decides whether or not they'd be interested in a future date. Very cool. One might question how generalizable are conclusions derived from Columbia grad students (or from speed-dating), but still, neat.

My complaint is simply that the author is doing the world a disservice by implying ("all of this rational-choice stuff") that if you want to study this sort of thing, you should look to economics. This is social psychology pure and simple (and indeed, two of the coauthors were psychologists). Now, none of this would matter much ... except that the social ecology of knowledge-production really is sensitive to considerations like this. It's not good for Truth when economics is seen as the only "real" social science, and bright students go for econ PhDs regardless of the questions they intend to study or the methods best suited for studying them.

UPDATE: to clarify a bit--I don't have a problem with interdisciplinarity. Interdisciplinarity, done well, is great. What I have a problem with is when the general public comes to have a distorted view about what various disciplines are about. If you go to grad school for econ, you'll spend your first years with Mas-Colell, Whinston, and Green; it's not the most natural place for learning how to conduct field studies to gather data on social interactions.