This book discusses the origins of wealth inequality and explains how societies can reform to avoid the catastrophe of inequality-induced social breakdown. It develops a theoretical and practical understanding of the principles behind the concept of ownership and property, complete with historical examples. It proposes a new research perspective focusing on how the problem of wealth concentration is ameliorated by cooperative and collaborative initiatives to enhance the public sphere, without derogating from the private.

Using examples from around the world, the author examines contemporary practices of solidarity to illustrate what such a conceptualization of human mobility looks like. He suggests that urban and local scales, rather than the national scale, is a better way to frame human migration and belonging. The book ultimately proposes that solidarity, rather than sovereignty, offers an alternative approach to imagine how human mobility should, and already does, occur.

One of the world's leading experts on wealth, poverty, and the gap that separates them, explains how wealth is unevenly spread throughout our world, now and through time. Economist Branko Milanovic uses history, literature and stories straight out of today's newspapers, to discuss one of the major divisions in our social lives: between the haves and the have-nots.