Normal and non-normal science

As a coda to my last post about the stange world of sociology journal publishing I found this short paper by Lin Freeman illuminating: http://moreno.ss.uci.edu/87.pdf. It never occurred to me that acceptance rates in hard science journals would be so much higher than in the social sciences though his explanation makes perfect sense. I wonder how it would look if you included in the sample more paradigmatic disciplines like economics or (non social) psychology?