This article examines a game-theoretic approach by Carter and Irons wh
ich tests the proposition that ''economists'' behave differently than
''non-economists.'' By supplementing an economics experiment among col
lege undergraduates with a survey of the students' previous exposure t
o economics we lend support to the hypothesis that students who unders
tand basic economic axioms will employ this logic in decision-making p
rocesses. However, by controlling for the students' present field of s
tudy, we find contrary evidence to the Carter-Irons theory, that the s
tudents who grasp the basic economic axioms will self-select economics
as a field of study. Despite our improvements to the Carter-Irons tes
t, little additional evidence is provided to determine if economists a
re born or made.