Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
What determines human beings' political preferences? Using nationally representative longitudinal data, we show that having daughters makes people more likely to vote for left-wing political parties. Having sons leads people to favor right-wing parties. The paper checks that our result is not an artifact of family stopping rules, discusses the predictions from a simple economic model, and tests for possible reverse causality. © 2010 The President and Fellows of Harvard College and the Massachusetts Institute of Technology.