TY - JOUR AU - Slemrod,Joel AU - Yitzhaki,Shlomo AU - Mayshar,Joram TI - The Optimal Two-Bracket Linear Income Tax JF - National Bureau of Economic Research Working Paper Series VL - No. 3847 PY - 1991 Y2 - September 1991 UR - http://www.nber.org/papers/w3847 L1 - http://www.nber.org/papers/w3847.pdf N1 - Author contact info: Joel Slemrod University of Michigan Business School 701 Tappan Street Room R5396 Ann Arbor, MI 48109-1234 Tel: 734/936-3914 Fax: 734-615-4323 E-Mail: jslemrod@umich.edu Shlomo Yitzhaki Department of Economics Hebrew University Mount Scopus Jerusalem 91905 ISRAEL Tel: 972-2-659-2201 Fax: 972-2-652-2319 E-Mail: shlomo.yitzhaki@huji.ac.il AB - 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 increasing or declining. We next use numerical optimization techniques to study the optimal structure of such a tax system in a multi-person model that is a stylized version of an actual economy. We discover that in all cases the tax rate in the second (higher) bracket is less than the tax rate that applies to the first bracket but that progressivity, in the sense of a uniformly rising average tax rate, generally obtains. Compared to the optimal one-bracket (linear) tax system, both the highest and lowest income individuals are better off, while a middle range of taxpayers is worse off. ER -