traditional income support policies, the last decades have witnessed, in many countries, reforms introducing more sophisticated … the countries. The optimal tax-transfer rules feature a universal unconditional basic income or, equivalently, a negative … income tax with a guaranteed minimum income. The tax profiles are much flatter than the current ones. For most social welfare …

We look at the theory of arbitrage with taxation under certainty. The tax scale in our model is not linear. Under the …

income and a tax defined by a 4th degree polynomial. The rule is applied to total taxable household income. A … to a Negative Income Tax or a Universal basic income with a flat tax rate. In Spain and the UK, the optimized rules are …

taxpayer utility, population skill distribution, and wages. It implements and extends the classic approach to optimal income … attitude to work and budget external flows on the income tax schedule. Then, we measured the convergence of the search process …