My paper on the Pig in the Python is now free of copyediting errors!
www.pnas.org/doi/10.1073/...
Gift link: www.hist.umn.edu/~ruggles/Art...
This analysis revisits the relative cohort size hypothesis proposed by demographer
Richard Easterlin in the 1960s. Easterlin argued that the econom...
www.pnas.org
Steven Ruggles