In the United States, there is now a more systematic, independent survey promoted by economists at the University of Chicago Booth School of Business. Their financial trust index, based on a large-scale survey of financial decision-makers in American households, did show a sharp fall in trust in late 2008 and early 2009, following the collapse of Lehman Brothers.
Aux USA, les économistes de la Booth School of Business de l'université de Chicago se sont livrés à une enquête indépendante, bien plus systématique.