Xavier Sala-i-Martin's Home Page. Blog Random Thoughts, Mass Media, Academics and Books, Speaking, WEF Competitiveness, Nostalgia. Copyright © Xavier Sala i Martín.
Xavier Sala-i-Martin's Home Page. Blog Random Thoughts, Mass Media, Academics and Books, Speaking, WEF Competitiveness, Nostalgia. Copyright © Xavier Sala i MartÃn.