Assuming isoelastic returns to education and an endogenous supply of qualified and nonqualified labour, it is shown to be second-best efficient not to distort the choice of education. Furthermore, taxation should set incentives so that qualified labour is substituted for nonqualified labour. As a result, it is efficient to tax labour income regressively with respect to qualification and to tax the monetary cost of education at a level that restores efficiency in education. Atax on capital income alleviates the distortion that progressive taxation of labour income exerts on human-capital investment.
Endogenous choice of education and labour efficient taxation of human and nonhuman capital double-dividend hypothesis