the school in 1879, around the same time as Théodule Ribot, a psychologist well known for developing Ribot's Law. Pierre Bourdieu, who studied dynamics of power in society and its transmission over generations and became a vocal critic of the French system of grandes écoles and notably ENS as the standard-bearer of that system, studied at ENS in the early 1950s, at the same time as his later intellectual adversary, individualist Raymond Boudon, both of them having taken and passed the agrégation in philosophy at the end of their studies at the school. Other major ENS sociologists and anthropologists include Maurice Halbwachs, Alain Touraine and Philippe Descola. The school also has a tradition of geography, with the founder of modern French geography and of the French School of Geopolitics Paul Vidal de La Blache having been a student at the school starting in 1863. As for economics, its history at the school is less long, as it was not among the subjects first taught at the school. However, Gérard Debreu won the 1983 Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel, and there is a growing output of economists from ENS, as evidenced by the young generation of French economists represented by Emmanuel Saez, winner of the 2009 John Bates Clark Medal, Esther Duflo, who won the same medal in 2010 and the Nobel prize in 2019, and Thomas Piketty, author of the 2013 bestseller Capital in the Twenty-First Century. Since its creation in 2000, ten of the twenty recipients of the Prize of the best young French economist have been ENS alumni, including Antoine Bozio (who now teaches at EHESS), Camille Landais (LSE), Emmanuel Farhi (Harvard), Pascaline Dupas (Stanford) and Xavier Gabaix (Harvard). Government and politics ENS has never had a public policy division, but some of its students have become leading statesmen and politicians. Third Republic Prime Ministers Jules Simon, Léon Blum, Édouard Herriot and Paul Painlevé as well as socialist leader Jean Jaurès were early examples of this trend. At this time, quite a few ENS former students and intellectuals were drawn to socialism, such as Pierre Brossolette who became a Résistance hero and a major national leader during World War II. The institution has continued to be seen as a left-wing school since then. Later, as ENS came increasingly to be seen by some as an antechamber to the École nationale d'administration,