The paper uses a survey to examine undergraduates' knowledge of salari
es by type of education. Students' beliefs varied systematically with
their year of study and personal background. The median student made (
estimated) absolute errors of approximately 20 percent, but the mean s
igned error was only -6 percent. Regression analysis revealed links be
tween students' knowledge of the labor market, and year of study, prox
imity of the occupation to the student's own field and parents' income
. Over half of learning occurred during the fourth year. Legit analyse
s of students' use of information sources supported this conclusion. I
mplications for human capital theory are considered.