Why Is Inequality Wrong?

Radical Markets: Uprooting Capitalism and Democracy for a Just Society
Eric A. Posner and E. Glen Weyl
Princeton University Press, 2018
xii + 337 pages

Radical Markets has at least one virtue. The book contains many unusual proposals, and I propose to concentrate on one of the strangest of these. Eric Posner, a legal scholar, and Glen Weyl, a principal researcher at Microsoft, call for speculative boldness, and they have given us that; but sound argument is another matter.

The authors agree w...