French economist Thomas Piketty is getting rock star treatment as he visits the U.S., says an article in the New York Times. Or, at least as much rock star treatment that a practitioner of ‘the dismal science’ can realistically expect. Piketty’s new book Capital in the 21st Century is making waves, particularly among political liberals, for its thesis about the increasing concentration of wealth that he says is the outcome of free market economies. But not an inevitable outcome — Piketty is no fatalist. If governments intervene, who knows what may happen? It will be interesting to see if Piketty’s work spawns political action. Meanwhile, fans are hailing him as a new Alexis de Toqueville … or Karl Marx.