James Mirrlees

"I must confess that I had expected the rigorous analysis of income taxation in the utilitarian manner to provide arguments for high tax rates. It has not done so."

"The income tax is a much less effective tool for reducing inequalities than has often been thought."

"An approximately linear income tax schedule is desirable; and in particular negative income tax proposals are strongly supported,"

"What does an income tax schedule look like, which takes account of the trade-off between equity and efficiency? This question was first asked by Mirrlees (1971) who developed the standard model of the optimal nonlinear income tax. Since then innumerable papers have generalized, refined, or corrected his analysis. It has also been realized that the second-best approach to income taxation pertains to a wide variety of economic problems such as monopoly pricing or contract theory in general. In this respect Mirrlees’ article has opened an important and fascinating strand of economic thought."