A. Nishi, H. Shirado, D.G. Rand, and N.A. Christakis, "Inequality and Visibility of Wealth in Experimental Social Networks," Nature, Published online 09 September 2015. doi:10.1038/nature15392.
Editorial: Behavioural economics: Visible inequality breeds more inequality A
Editorial: Money matters. It is not how much people have, it is how much we know they have that stokes inequality. A