"We explore the impact of a tax reform in some provinces of China which eliminated the value-added tax on some investment goods. While the goal of the experiment was to encourage upgrading of technology, our results suggest that there was no evident increase overall in fixed investment, and...

In 1954, the Internal Revenue Service stipulated that employer contributions to the health insurance plans of their employees were to be excluded from employee taxable income. Today, the tax subsidy is major feature of the U.S. health care market. This paper examines the initial effects of the...

We describe the enormous changes in social and tax policy in recent years that have encouraged work by single mothers. We document the changes in federal and state income taxes, AFDC and Food Stamp benefits, Medicaid, training and child care programs. We describe the quantitative importance of...