“…It is easy to list causal hypotheses. Education might specifically teach students about economics (Frey, Pommerehne & Gygi, 1993;Gleason & van Scyoc, 1995;Kirchgässner, 2005;Walstad, 1992;Walstad & Rebeck, 2002) or simply impart the critical thinking skills to see through popular fallacies (Terenzini, Springer, Pascarella & Nora, 1995). Alternately, education could indirectly accomplish these things through peer effects (Hanushek, Kain, Markman & Rivkin, 2003;Hoxby, 2001;Zimmerman, 2003): If you spend time with others who have Intelligence 38 (2010) 636-647 studied economics and/or critical thinking, perhaps some of it will spill over to you.…”