Abstract
Most of us naturally assume that the more courses a student takes the more he or she will learn. Little has been done, however, to determine just how much additional knowledge or understanding is acquired from economics courses above the introductory level. David Hartman, Director of Undergraduate Economics at Harvard, has taken an important step in attempting to measure the impact of the higher level courses. This atticle reports the results of a study of the effects of intermediate micro and macro courses, field courses, a “graduate-type highly theoretical course,” and a policy-oriented micro course. The report should be of great interest, and will probably engender additional research in other colleges.