In labour markets with collective wage bargaining higher progressivity of the labour income tax creates a trade-off. On the one hand, wages are lowered and unemployment decreases, on the other hand, the individual labour supply decision is distorted at the hours-of-work margin. The optimal level...

In the economic policy debate, income tax progressivity is mostly seen as a means of redistribution. The more progressive the tax, the more redistribution from the rich to the poor. However, high tax progressivity also means high marginal tax rates for those with a high income, which leads to...