Thomas Piketty
Thomas Piketty, the French author of the best selling book, Capital in the 21st Century, is explicit in his opposition to the growing concentration of income and wealth in the hands of the 1%. In fact, his strong ethical commitments in combination with his careful collection of vast amounts of data helped his work launch a global debate about income inequality. Some of the important articles that he has written with his U.C. Berkeley collaborator, Emmanuel Saez are available here.