HEC Paris was honored to welcome Professor Thomas J. Sargent, who was awarded in October 2011, together with Chris Sims, the Nobel Memorial Prize in Economic Sciences for his « empirical research on cause and effect in the macro economy ». He visited the campus to hold a seminar and conference for HEC Paris students on “Macroeconomic Theory and the Crisis”. During the event, Prof. Sargent was named Honoris Causa Professor.