D.E.A. Mathématiques appliquées à l'Économie, Université Paris IV, 1971
D.E.S. Sciences Économiques, Université Paris , 1971
École Nationale de la Statistique et de l'Administration Économique ENSAE, 1970
École Polytechnique, 1965
Guy is a Research Fellow at the IFS and was involved with the Mirrlees Review of the UK tax system. He is also a Professor at Sciences Po and at University College London. Guy ‘s research revolves around macroeconomic issues, with contributions to theory, public economics, econometric techniques and applications.