"There has been a remarkable upsurge of debate about increasing inequalities and their societal implications, reinforced by the economic crisis but bubbling to the surface before it. This has been seen in popular discourse, media coverage, political debate, and research in the social sciences....

Thomas Piketty's Capital in the Twenty-First Century is the most widely discussed work of economics in recent history, selling millions of copies in dozens of languages. But are its analyses of inequality and economic growth on target? Where should researchers go from here in exploring the ideas...