We investigate the optimal rate structure of an income tax system that is constrained to have only two brackets, plus a demogrant. We find that, in a two-class economy, Pareto efficient tax schedules feature at least one marginal tax rate equal to zero, and that the marginal tax rate may be...

We investigate the optimal rate structure of an income tax system that is constrained to have only two brackets, plus a demogrant. We find that, in a two-class economy, Pareto efficient tax schedules feature at least one marginal tax rate equal to zero, and that the marginal tax rate may be...

We provide here a necessary and sufficient operational condition for determining whether a given portfolio is efficient in the sense of second-degree stochastic Dominance (SSD). This condition also enables one to find a direction for improving on an inefficient portfolio, in the sense that all...