He has been a Visiting Professor at Stanford University, the Graduate School of Business at the University of Chicago, the Hebrew University of Jerusalem, Harvard University, the University College of Dublin, the Hebrew University of Jerusalem, the University of Manchester, the University of Tel Aviv and the Interdisciplinary Center in Herzlyia, Israel.
He was elected to the American Academy of Arts and Sciences (1995), Foreign Member of the Royal Netherlands Academy of Arts and Sciences (2001) and the Accademia Nazionale dei Lincei (2004). He serves as chair of the Advisory Committee to the Institutions, Organizations, and Growth Group of the Canadian Institute for Advanced Research (CIFAR), and is a member of the Board of Directors of the National Bureau of Economic Research.