 Among his work in labor economics are papers on the theory of wealth distribution, efficiency wages and wage discrimination, in which Schlicht offers rationales for why such commonly observed phenomena may emerge in a free market.On efficiency wages, Schlicht has argued that the offering by employers of above-market wages may have to do with turnover costs, which the employer attempts to reduce by paying a "job rent".This is an alternative to other common approaches to efficiency wages such as the "discipline" theory by e.g.