The Mirrlees Review recommends that commodity taxation should in general be uniform, but with some goods consumed in conjunction with labour supply (such as child care) left untaxed. This paper examines the validity of this claim in an optimal income tax framework. Contrary to the recommendation...

Dual income tax systems have become increasingly popular; yet, relatively little is <p> known about the consequences of implementing such tax systems. This paper uses a representative panel of taxpayers from the 1993 Finnish tax reform to measure how overall taxable income and the relative shares...</p>

We utilise repeated cross sections of micro data from several countries, available from the Luxembourg Income Study, LIS, to estimate labour supply elasticities, both at the intensive and extensive margin. The benefit of the data is that it spans over four decades and includes a large number of...