Over the period 1960 - 1983 the proportion of federal tax revenue raised by taxation of labor supply has risen from 57-77 percent. In this paper, we specify and estimate a model of family labor supply which treats both federal and state taxation. Husbands and wives labor supply are treated...

Currently U.S. Federal Income Tax schedules do not maintain marriage neutrality, that is, tax liabilities depend upon marital status. This paper shows the extent and distribution of the departure from neutrality both under current law and the new (1981) tax act. The new tax law establishes a...

Income tax burdens on family units are adjusted to reflect differences in ability to pay attributable to whether the unit consists of a single individual or a married couple and how many dependents are present. Substantial controversy exists over the appropriate forms of adjustment, and existing...

This paper examines the appropriate tax treatment of the family in a series of analytical models and numerical examples. For a population of taxpaying couples which differ in earning capacity, we derive the optimal tax rates for each potential earner. These rates depend crucially upon own and...

This paper analyzes the optimal income tax treatment of couples. Each couple is modelled as a single rational economic agent supplying labor along two dimensions: primary and secondary earnings. We consider fully general joint income tax systems. Separate taxation is never optimal if social...

Tax relief for child care expenses, encompassing the Child Care Tax Credit and Dependent Care Assistance Plans, is the largest federal government program in the United States aimed at helping families with child care. We examine the distributional effects of these policies among families with...

The new tax law increases tax rates of high income individuals, and expands the earned income tax credit for low income individuals. We use a sample of actual tax returns to compute estimates of the 'marriage tax' - the change in couples joint tax upon marriage - under this new law. We predict...

This paper presents new homogeneous series on top shares of income from 1920 to 2000 in Canada using personal income tax return data. Top income shares display a U-shaped pattern over the century, with a precipitous drop during World War II, followed by a slower decline until 1970. Since the...