The coexistence of a predominantly poor opinion of free markets and lack of education in economics are two documented features of France. In this paper, we use data collected through an Internet-based survey conducted in December 2009 in order to test whether this situation is more than a mere coincidence. A first regression model allows us to study how personal characteristics, general and economics education, occupation and personal interest in economics affect knowledge in economics. We then apply factor analysis in order to build an aggregate indicator of opinion on promarket reforms. This opinion indicator becomes the dependent variable in a second multiple regression model; it turns out that knowledge in economics contributes by 3.5% to explain the favorable opinion on pro-market reforms.