Changing the income tax progressivity in labour markets with collective wage bargaining generates a trade-off. On the one hand, higher progressivity distorts individual labour supply decisions at the hours-of-work margin, on the other hand, it reduces unemployment by exerting downward pressure...

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...