Societies with class structure expand faster than egalitarian ones, researchers say | Science News | Scoop.it
From www.physorg.com - September 26, 2011 1:38 PM
(PhysOrg.com) -- Arguably the worst feature of societies with class structures – the disproportionate suffering of the poor – may have been the driving force behind the spread of those stratified societies across the globe at the expense of more...