Inequality
A Brief Look at Postwar U.S. Income Inequality, Addressing the Extremes of Wealth and Poverty, Capitalist Policies, Carnegie Council on Ethics and International Affai, China: A Shared Poverty To Uneven Wealth?, Closing the Wealth Gap, CONVERGE project, Growing Income Disparity and the Middle Class Sque, Helena Norberg-Hodge, IGC articles on income inequality
Wealth IS a Zero-Sum Game
In Defense of Democratic Capitalism says that wealth is a zero sum game (this means that there is always a loser whenever anyone gains, and all exchanges therefore make someone lose or everyone break even).