Thomas Piketty's book Capital in the 21st Century has already attracted more serious attention than any economics book published in the last seventy-five years. This collection of 17 essays by some of the world's most prominent economists explores Piketty's book at depth and from various vantage points. Here is what economists around the world are already saying about this book. "Marx's Capital is strong on theory but, it detractors allege, weak on data. In a dialectic worthy of Hegel himself, the critics assembled here argue that Piketty's Capital stands opposite to Marx's, as strong on data but weak on theory. This combination--plus its exquisite timing--explains it critical acclaim. The juxtaposition of economic stagnation and obscene inequality in the aftermath of the financial crisis made it impossible for mainstream economists to continue ignoring inequality, let alone applauding it as they have done for so long. Piketty made it possible for them to acknowledge it without...