RT Journal Article SR Electronic T1 Major Malfunction JF Journal of Human Resources JO J Hum Resour FD University of Wisconsin Press SP 922 OP 939 DO 10.3368/jhr.56.3.0317-8599R2 VO 56 IS 3 A1 John J. Conlon YR 2021 UL http://jhr.uwpress.org/content/56/3/922.abstract AB In a field experiment at a flagship state university in the United States, I test whether providing college students salary information can affect their choices of major and classes. I find that undergraduates are substantially misinformed about mean salaries by major. On average, students in my sample underestimate mean salaries, but there is also large heterogeneity in beliefs across individuals. I also find that providing information to correct these errors has a large impact on students’ choices; students in the treatment group were nine percentage points (16 percent) more likely to major in a field about which they received information.