For economic and demographic reasons, beginning around 1970, the market for new college graduates soared, depressing predicted returns to investments in higher education instruction. Among alternative labor markets models, wage competition and job competition predict different outcomes for an exogenous increase in supplies of educated labor. Using wage competition, R. Freeman predicts declines in relative wages for groups whose supply increased. Using job competition, L. Thurow predicts market-wide wage declines because of bumping effects. However, regression studies based on the respective models account for very little of the variability in wages of new labor market entrants during the period 1966–1976.