. . "Jean-Jacques Marcel Laffont (April 13, 1947 \u2013 May 1, 2004) was a French economist specializing in public economics and information economics. Educated at the University of Toulouse and the Ecole Nationale de la Statistique et de l'Administration Economique (ENSAE) in Paris, he was awarded the Ph.D."@en . . "Jean-Jacques Laffont"@en . "1947Z"^^ . . . . "2004-05-01Z"^^ . "Laffont, Jean-Jacques"@en . . . . "2004Z"^^ . "French economist" . . . "1947-04-13Z"^^ .