M. Borgerhoff Mulder et al., “Intergenerational Wealth Transmission and the Dynamics of Inequality in Small-Scale Societies,” Sci 326 (2009): 682.
493
P. Turchin, War and Peace and War: The Rise and Fall of Empires (NY: Penguin Press, 2006); D. Rogers et al., “The Spread of Inequality,” PLoS ONE 6 (2011): e24683.
