Understanding Social Interactions: Evidence from the Classroom
---- Acknowledgements ----
We thank Richard Blundell, Pat Bayer, David Card, Joan de Marti, Matt Harding, Caroline Hoxby, Matt Jackson, Pat Klein, Thomas Lemieux, Enrico Moretti, Eleonora Patacchini, Jesse Rothstein and seminar participants at UC-Berkeley, NBER SI 2010, UCLA, UC-Davis, Universitá di Bologna, Stockholm University, Uppsala University. We are also grateful to Bocconi University for allowing access to their archives. In particular Giacomo Carrai, Mariele Chirulli, Mariapia Chisari, Alessandro Ciarlo, Enrica Greggio, Gabriella Maggioni, Erika Palazzo, Giovanni Pavese, Cherubino Profeta, Alessandra Startari and Mariangela Vago have all been a constant source of precious help and information. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.