Many in France are bemused by the sudden rise to fame in the US of French economist Thomas Piketty. Piketty’s analysis that rising income inequality is bad for the global economy just doesn’t seem so astonishingly new to the French.Many in France are bemused by the sudden rise to fame in the US of French economist Thomas Piketty. Piketty’s analysis that rising income inequality is bad for the global economy just doesn’t seem so astonishingly new to the French.