This paper contributes to the debate about the optimal design of tax-transfer systems. Basedon the theory of optimal taxation, combined with microsimulation and microeconometrictechniques we derive the welfare function which makes the current German tax and transfersystem for single women optimal...

This paper uses British panel data to investigate single women´s labour supply changes inresponse to three tax and benefit policy reforms that occurred in the 1990s. These reformschanged individuals´ work incentives and we use them to identify changes in labour supply.We find evidence of small...